What Are Allergic Hives?

Allergic urticaria is an allergic reaction caused by allergies, and external factors cause the body to appear specific antibodies

Allergic urticaria

Allergic urticaria

Allergic urticaria is mostly caused by allergic mechanisms. Allergens in food (mostly heterogeneous proteins) stimulate the body and cause the body to produce specific antibodies IgE (immunoglobulin E). This IgE antibody is attached to mast cells or basophils in the body. When you eat this In food, IgE antibodies bind to allergens in the food, causing mast cells and basophils to release histamine. Histamine in turn acts on blood vessels, causing it to expand and increase permeability, so a large amount of protein and liquid leak out into the skin tissue, and urticaria is produced. This is a type I allergic reaction.

Introduction to allergic urticaria

Allergic urticaria is an allergic reaction caused by allergies, and external factors cause the body to appear specific antibodies

Allergic urticaria

IgE (immunoglobulin E) eventually causes urticaria symptoms in the body.

Allergic urticaria classification

Allergic urticaria

Onset is usually acute, the skin itches suddenly, and bright red wind masses of various sizes quickly appear, which are round, oval, or irregular

Allergic urticaria

Shaped, mostly isolated and scattered, can also be merged into a film. However, if the serum in the microvesicles exudates sharply and compresses the tube wall, the wind mass may be pale, and the surface pores are significantly orange-like. Within a few hours, the edema was reduced, and the wind mass turned into erythema and gradually disappeared. However, new wind masses occurred one after another, and they could occur multiple times within a day. Patients with severe conditions may have symptoms of anaphylactic shock such as palpitation, irritability, nausea, vomiting, and even decreased blood pressure. In some patients, gastrointestinal tract involvement may cause mucosal edema. At the same time as the wind mass, abdominal pain, sometimes very severe, is quite similar to acute abdomen; diarrhea can also occur, accompanied by acute aftermath and thin mucus. Breathing and even suffocation may occur if the mucosa of the throat is involved. If accompanied by symptoms of systemic poisoning such as high fever and chills, special attention should be paid to the possibility of serious infections such as sepsis.

Routine blood tests often have elevated eosinophils. If there is a severe S. aureus infection, the total number of white blood cells is often increased or the cell count is normal and the percentage of neutrophils is increased, or at the same time there are toxic particles.

Allergic urticaria chronic urticaria

Systemic symptoms are generally mild, and wind masses are frequent and recurrent, often occurring for months or years. Some have time, such as aggravated in the morning or before going to bed, while others have no regular pattern. Most patients cannot find the cause, and their disease is stubborn and difficult to treat.

Is allergic urticaria transmitted?

Allergic urticaria is not contagious. Allergic urticaria is a disease of the patient's own immune system. An allergic reaction due to the stimulation of allergens, a common skin disease produced on the skin. There is no possibility of infection. Therefore, allergic urticaria is not contagious.

Allergic urticaria what can eat urticaria

For urticaria, avoid foods containing artificial additives and eat more fresh fruits and vegetables. Fried, fried, or spicy foods are less likely to eat foods that trigger thermal reactions in the body. Eat more alkaline foods such as: grapes, green tea, kelp, tomatoes, sesame, cucumber,

Urticaria cannot eat vegetables

Carrots, bananas, apples, oranges, radishes, mung beans, Italian kernels, etc. Bitter melon contains quinine. It has the functions of clearing heat and detoxifying, removing dampness and itch. Can be used to treat fever, scabies, boils, eczema and other conditions. Tomatoes are rich in vitamin A, vitamin B1, vitamin B2, vitamin C, niacin, and vitamin E; they also contain malic acid, citric acid, calcium, phosphorus, iron, and tomatine. With Shengjinzhike, Jianweixiaoshi, Liangxue Pinggan, Qingre and other effects. Fruit acid in tomatoes has a protective effect on vitamin C, so it can effectively supplement vitamin C; tomatine has antibacterial, anti-inflammatory, and reduced vascular permeability effects, so topical tomato juice can treat itching and condense. Leeks Leeks contain carotene, vitamin B :, vitamin C and calcium. Phosphorus, iron, protein, cellulose, etc. Leek also has the effect of detoxification and dampness.

Allergic urticaria symptoms

Urticaria appears as pale, flat, flat, varying sizes and irregular shapes that often merge into large pieces.

Urticaria symptoms

With obvious itching, skin lesions spread throughout the body for a long time. Urticaria develops quickly and fades quickly. It usually subsides within 24 hours. Children often have fever and gastrointestinal symptoms, and some children may have localized edema in the hands, feet, eyelids, and even the entire face.

Allergic urticaria daily precautions

Allergic urticaria

The incidence of urticaria is related to diet, and certain foods may be the cause. For example, canned fish, shrimp, seafood, artificial additives such as artificial colors, preservatives, yeast, canned foods, beverages, etc. can induce urticaria. In addition, irritating foods such as too hot and sour will also reduce the digestive function of the gastrointestinal tract, leaving food residues in the intestine for too long, resulting in peptone and peptides, increasing the chance of human allergy.

Allergic urticaria

People with a history of urticaria should pay attention to keeping the indoor and outdoor clean and hygienic, and keep fewer pets such as cats and dogs at home. Avoid breathing pollen, dust, etc. Keep away from wind, cold, heat, dampness, fire and insect poison. Life rules to adapt to changes in the external environment. Drinking, heating, emotional agitation, and exertion will all increase the skin's blood vessels and cause urticaria. Rubber gloves, hair dyes, perfumed soaps and detergents, chemical fiber and wool clothing, etc. can be a bad irritant for people with allergies or urticaria

Urticaria

Should be avoided. People with cold urticaria should not go to the beach or take a cold water bath. Keep warm in winter.

Allergic urticaria pay attention to drug factors

In the clinic, some drugs can cause urticaria, such as antibiotics such as penicillin, tetracycline, chloramphenicol, streptomycin, sulfa drugs, polymycin, antipyretic analgesics such as analgin, aspirin, and so on.

Allergic urticaria actively treats the original disease

Urticaria is both an independent disease and a skin manifestation of some diseases. There are many diseases that can cause urticaria, such as infectious diseases: parasitic infections such as intestinal roundworms and roundworms; bacterial infections such as dental caries, alveolar abscesses, tonsillitis, otitis media, and sinusitis; viral infections like type B Hepatitis; fungal infections like tinea pedis. In addition, diabetes, hyperthyroidism, menstrual disorders, and even potential tumors in the body can cause urticaria.

Maintain a healthy mindset and improve physical resistance

The onset and exacerbation of chronic urticaria is related to a person's emotional or psychological stress.

Allergic urticaria prevention with Chinese medicine

Certain Chinese medicines, such as Shouwu, Chinese wolfberry, ginseng, astragalus, ganoderma, jujube, privet fruit, dodder,

Chinese medicine for urticaria

Schisandra chinensis, Huangjing, Huaishan yam, Codonopsis, etc. have various functions such as anti-free radicals, improving immune function, promoting metabolism, regulating nervous system and endocrine system, and have obvious anti-allergic effects.

Main factors of allergic urticaria

In fact, skin disease is a very common skin disease in our lives, and urticaria in particular has already affected our normal life and work in many cases. So what causes allergic urticaria? ? Expert analysis: 1. There are drugs, such as some vaccines, penicillin, serum, etc. 2, and there is food, such as eggs, milk, shrimp and crab, fish and so on. 3, there are various infections, such as parasites, bacteria, molds, viruses and so on. 4, and some inhaled substances, such as various pollen, dust and some smoke, etc.

Clinical classification of allergic urticaria

Allergic urticaria skin scratch

Also known as artificial urticaria (factitious urticaria). After scratching by hand or scratching the skin with a blunt instrument, strip-like bulges occurred along the scratches, accompanied by itching, which subsided shortly. Can occur alone or with urticaria.

Allergic urticaria angioedema

Also known as giant urticaria, it occurs mainly in loose tissue.

Urticaria

Such as eyelids, lips, external genitalia, etc. Most are single shots and occasionally occur in more than two places. The damage was sudden localized swelling, involving subcutaneous tissues, unclear borders, reddish or normal, shiny skin, and a feeling of elasticity. It could subside on its own for 1 to 3 days, but it could recur on the same site. If it occurs in the laryngeal mucosa, it can cause breathing difficulties and even death from suffocation.

Allergic urticaria

It can be divided into two types: one is familial, and is autosomal dominant, which is rare. Symptoms occur shortly after or early in life and are repeated throughout life. After experiencing cold, in addition to the wind group, fever, chills, headache, joint pain and other symptoms may be present at the same time. At the time of the attack there was neutrophilism. Passive transfer test was negative. The other is acquired, which is more common in young women. When the temperature drops sharply, after contact with cold wind, cold water or cold objects, wind masses or plaque edema will be produced in the exposed or exposed cold objects, which lasts for half an hour or even 3-4. hour. Severe cases may include hand numbness, lip numbness, tightness of breath, palpitations, abdominal pain, diarrhea, syncope, and even shock. Occasionally it is the cause of drowning. Sometimes eating cold drinks can cause swelling of the mouth or throat. Passive transfer test was positive. If a small piece of cube ice is placed on the forearm flexion of the patient for a provocation test, a positive result can be obtained after 5 minutes. The mechanism of cold urticaria has not been satisfactorily elucidated yet, or it is believed that cold causes a normal metabolite to become an antigen, which causes the production of antibodies (IgE); or that cold directly releases local skin histamine. It is also believed that due to genetic factors, the lack of a2 globulin C1 esterase inhibitor in the patient's serum.

Cold urticaria can be one of the symptoms of certain diseases, such as cold globulinemia (myeloma, macroglobulinemia, systemic lupus erythematosus), paroxysmal cold hemoglobinuria (syphilis), cold fiber Proteinogenemia, cold hemolysis, etc. (4) Cholinergic urticaria is more common in young people. It is caused by acetylcholine acting on mast cells due to exercise, heat, emotional stress, eating hot drinks or alcoholic beverages and other inducing factors. The wind mass appears within a few minutes after being stimulated. It has a diameter of about 2 to 3 millimeters and a large red halo around it. It often distributes in the upper trunk and upper limbs and does not fuse with each other. It subsides within half an hour to an hour. Consciously tickle. Sometimes it only has itching and no rash. Occasional systemic reactions of acetylcholine, such as drooling, headache, bradycardia, diminished pupils, and spastic abdominal pain, diarrhea and other symptoms can cause fainting in severe cases. The course of the disease generally improves after a few years. Skin test or scratch test with 1: 5000 acetylcholine (methacholine) can produce positive results

Allergic urticaria

Solar urticaria is rare. Wind masses occur on the skin exposed to sunlight, and itching and acupuncture-like sensations are sometimes caused by sunlight passing through glass. In severe cases, there are systemic reactions such as chills, fatigue, syncope, and spastic abdominal pain. Ultraviolet sensitivity is strongest at wavelengths around 300 nm. The serum of those who are allergic to 285 ~ 320 nm UV may contain a certain globulin antibody (probably IgE), which can make the passive transfer test positive.

Allergic urticaria

Pressure urticaria occurs about 4 to 6 hours after the skin is compressed, local swelling occurs, and the skin and subcutaneous tissues are involved, which subsides for 8 to 12 hours. It is especially easy to occur in the parts of the feet and hips that are compressed after walking. The mechanism is unknown and may be similar to skin scratches.

Allergic urticaria treatment for urticaria

There are many causes of urticaria, and patients who claim to use drugs without permission will not only cure the disease, but may also cause serious consequences.

Urticaria is a clinically common skin disease. In addition to allergies to seafood and drugs, the recent climate has changed. Patients are affected by factors such as respiratory infections. Allergic reactions can also occur in the body, causing urticaria to appear on the skin. There is a red wind mass on the skin, which is patchy and itchy. Many patients saw the skin rash and did not look for the cause, so they went outside and bought anti-allergy ointment, which was applied indiscriminately, and the result was neither symptomatic nor delayed.

Urticaria

Therefore, the treatment of urticaria should first look for the cause, under the guidance of a doctor, and not target yourself, and should not use the medicine indiscriminately. Otherwise, acute urticaria can easily be converted to chronic urticaria due to untimely treatment, which causes a series of unnecessary troubles such as long-term medication.

Allergic urticaria urticaria prevention

The cause of urticaria is an allergic reaction. There are many factors that cause allergies, such as drugs, food, clothing, pollen, cosmetics, and so on. Treatment should start from two aspects: blocking allergens and anti-allergic treatment. Find out as much as possible and remove it. For example, be careful to prevent inhalation of pollen, animal dander, feathers, dust, castor powder, avoid contact with allergens, and prohibit or fast certain drugs or food products that are allergic to the body. Those who relapse due to hot and cold stimuli should not be avoided too much. Instead, they should be contacted gradually, and the time of hot and cold stimuli should be gradually extended in order to adapt. Actively treat primary diseases, such as acute tonsillitis, cholecystitis, viral hepatitis, appendicitis, and intestinal roundworm disease, to prevent the source of the disease. Usually keep your spirit happy and feel good. At the same time, we should pay attention to temperature changes, increase and decrease clothing with temperature changes, and strengthen physical exercise.

Allergic urticaria what should pay attention to urticaria pregnancy

Urticaria is caused by a deliberate allergen. Skin lesions are most common in wind masses, especially multi-ring wind masses. Urticaria can cause fetal malformations. Therefore, it is recommended to find allergens first, and then go to a regular hospital for targeted treatment, and should be pregnant after the disease is controlled, so it is safer for adults and children. The incidence of urticaria is related to diet, and certain foods may be the cause. For example, fish and shrimp seafood, canned foods containing artificial additives such as artificial colors, preservatives, yeasts, pickled foods, beverages, etc. can induce urticaria. In addition, irritating foods such as too hot and sour will also reduce the digestive function of the gastrointestinal tract, leaving food residues in the intestine for too long, resulting in peptone and peptides, increasing the chance of human allergy. Urticaria is both an independent disease and a skin manifestation of some diseases. There are many diseases that can cause urticaria, such as infectious diseases: parasitic infections such as intestinal roundworms, roundworms, etc .; bacterial infections such as dental caries, alveolar abscess, tonsillitis, otitis media, sinusitis, etc .; viral infections like type B Hepatitis; fungal infections like tinea pedis. In addition, diabetes, hyperthyroidism, menstrual disorders, and even potential tumors in the body can cause urticaria. The onset and exacerbation of chronic urticaria is related to a person's emotional or psychological stress. Therefore, maintaining a happy mood, proper physical exercise, and strengthening your physique will all be very beneficial to preventing urticaria. And if you are pregnant during treatment, it is recommended to stop taking the medicine for 3-6 months, and it is best to be pregnant for more than 6 months.

Allergic urticaria diet note

Allergic urticaria milk and dairy products

Milk and dairy products are the most common foods for infants and young children, and are the most common food allergens that induce asthma in infants. Milk contains alpha lactalbumin, beta lactalbumin, and casein, among which alpha lactalbumin is all Allergens with the strongest allergenicity in milk ingredients. Although this protein can be significantly weakened after heat treatment, it can still induce more severe symptoms in patients with high milk allergy. In the past, a lactalbumin was considered to have a higher species specificity. Therefore, children who have been allergic to milk consider using goat milk instead. However, recent studies have confirmed that many different species of animals are similar in some antigenicity in food. For children who are allergic to milk, goat's milk is not a reliable substitute food, especially children who are allergic to milk should not include goat's milk in their food prescriptions.

Allergic urticaria seafood and aquatic products

Seafood and aquatic products have been found to have an increased incidence of asthma in fisheries-developed areas. It is unclear whether this is related to fish allergies. However, many studies have confirmed that fish, shrimp, crabs, shellfish and mussels can induce respiratory symptoms. For example, fish with reddish-colored fish such as trout, salmon, and catfish can easily induce allergic symptoms. Shrimp, crab Crustacean seafood such as oysters, squid, cuttlefish, etc. also contain high allergen ingredients. Allergens of these foods are usually heat-resistant, and cooked food often induces allergies, especially the consumption of fresh seafood can make allergies. Incidence has increased significantly. It has also been proven in recent years that inhalation of airborne fish meal can also induce symptoms in patients with allergic asthma to fish.

Allergic urticaria eggs and egg products

Eggs and egg products can cause allergies in patients of all ages, with infants and young children having the highest allergy rate. Ovalbumin in egg white is the main allergen that induces allergies, and egg yolks rarely cause allergies.

In order to reduce some adverse factors caused by the drug.

Allergic urticaria disease remedies

One side for treating urticaria: 5 cicadas, 250 grams of duckweed in the pond, decoction, twice daily (one morning and one evening). Fresh loofah leaves for urticaria: Pick fresh silky claw leaves and rub repeatedly at the rash instead of scratching it with your hands. Wash the fresh loofah leaves with water and use them for later use. When you have a fresh sponge gourd, rub them for more than 10 times Times.

Navel cupping for urticaria: Clip cupping on navel and repeat two or three times.

Vinegar and white wine mixed solution to cure wind rash: two parts of vinegar and one white wine are mixed and scrub the affected area, the symptoms can be relieved after a few minutes, even if rubbed several times.

Ginger treatment with fresh ginger : Rub the affected area with fresh ginger juice several times a day.

Bauhinia flower stems boil water for wind crickets: The flowers and stems of the bauhinia tree (before the spring leaves are not bloomed, the purple flowers bloom first) can be boiled and smoked, washed once a day in the morning and evening, and healed in two days.

Leek juice for urticaria: apply fresh leek juice. Apply twice daily for a week. After chopping fresh chives to make juice, store them in a refrigerator in a container for several days.

Chameleon cures urticaria: Take a dozen roots of Chameleon, wash and cut into sections, cook for 5 minutes, add honey, and eat with drink. It has a good therapeutic effect on the symptoms of urticaria such as redness, swelling and itching. Should be boiled for 3 consecutive days, once a day.

Pakchoi cures urticaria: 500 grams of pakchoi, wash the sediment, dry the water, grab 3 or 5 trees each time and rub them in the affected area, cool and refreshing. Once a day, morning and evening, only 3 times, healed.

One way to cure urticaria: take a herb plant of Artemisia tungensis, boil it in a pot and drink for about 5-10 minutes.