What Causes Itching Under the Skin?

Skin irritation and itching is a disease that causes symptoms such as itching of the skin due to excessive production of a special type of antibody in the body. An allergic reaction is a metamorphic reaction. It is the body's abnormal response to one or more substances. The main cause is that too many special antibodies are produced in the body of allergic patients. It can react with allergens in the environment. , Stimulate the body to produce and release certain excess chemicals, which in turn produces various symptoms. Medically, allergies (allergies) are divided into 4 different types and named after the Roman numerals I to IV. The most common of these are type I and type IV. Type I is sometimes referred to as "atopic" or "rapid allergy."

Itchy skin

Skin irritation and itching is a disease that causes symptoms such as itching of the skin due to excessive production of a special type of antibody in the body. An allergic reaction is a metamorphic reaction. It is the body's abnormal response to one or more substances. The main cause is that too many special antibodies are produced in the body of allergic patients. It can react with allergens in the environment. , Stimulate the body to produce and release certain excess chemicals, which in turn produces various symptoms. Medically, allergies (allergies) are divided into 4 different types and named after the Roman numerals I to IV. The most common of these are type I and type IV. Type I is sometimes referred to as "atopic" or "rapid allergy."

Chinese name

Itchy skin

the reason

Excessive production of a special antibody in the body

allergen

Pollen, catkins, dust, mites, etc.

Brief introduction

An allergic reaction is a metamorphosis

An allergic reaction is a metamorphic reaction. It is the body's abnormal response to one or more substances. The main cause is that too many special antibodies are produced in the body of allergic patients. It can react with allergens in the environment. , Stimulate the body to produce and release certain excess chemicals, which in turn produces various symptoms. Medically, allergies (allergies) are divided into 4 different types and named after the Roman numerals I to IV. The most common of these are type I and type IV. Type I is sometimes referred to as "atopic" or "rapid allergy." For example, the human body responds within seconds after being stung by an insect. Animal hair allergies and pollen allergies respond within minutes, and food allergies take less than 30 minutes. In contrast, type IV allergies respond much more slowly, with symptoms appearing after a day or days. For example, allergies to decorative objects and many types of occupational allergies. Therefore, it is called "late onset allergy".

The antigen that induces an allergic reaction is called an allergen. There are thousands or even tens of thousands of antigenic substances that cause allergic reactions. They sensitize the body by means of inhalation, ingestion, injection or contact. Common allergens are described below:

A. Inhaled allergens such as: pollen, catkins, dust, mites, animal dander, soot, paint, automobile exhaust, gas, cigarettes, etc.

B. Ingestion-type allergens such as: milk, eggs, fish and shrimp, beef and mutton, seafood, animal fats, alloproteins, alcohol, drugs, antibiotics, anti-inflammatory drugs, sesame oil, essences, onions, ginger, garlic, and some vegetables and fruits Wait.

C, contact allergens such as: cold air, hot air, ultraviolet, radiation, cosmetics, shampoo, dishwashing liquid, hair dye, soap, chemical fiber supplies, plastic, metal jewelry (watches, necklaces, rings, earrings), bacteria , Mold, virus, parasite, etc.

D. Injectable allergens such as: penicillin, streptomycin, xenogeneic serum, etc.

E. Mental stress, work stress, self-tissue antigens that change their structure or composition due to microbial infections, ionizing radiation, burns and other biological, physical and chemical factors, and self-concealed antigens released by trauma or infection can also become allergen.

1. Redness, itching, redness and swelling of the skin under aseptic conditions are more common in those with congenital fragile skin;

2. Eczema is easy to produce every season, and it is weak against ultraviolet rays. It will cause skin allergies to synthetic fiber fabrics, excessive perfumes, and changes in water quality. The main causes of skin allergies are eating seafood, using or contacting metal-containing substances, breathing air containing plant pollen, and responding to objects or insects;

3. Capillary blood is not congested for various reasons, causing blood circulation disorders, which leads to skin allergies;

4. Skin allergies to certain cosmetics, no matter how advanced cosmetics and skin care products are, it is nothing more than a mixture of colorants, oils, fragrances, alcohol and other materials, various pearl creams, ginseng creams and various types of pharmaceutical powder , Are also based on colorants, oils and fragrances, alcohol on the basis of adding a variety of pharmaceutical ingredients. Studies have shown that both the basic composition of makeup or skin care products and fragrance substances can cause skin discomfort.

1) When cleaning your face, do not use overheated water temperature, it is just about 30 degrees. Try not to use scrub cleansing, which will make the cuticle of the skin thinner and thinner. 2) Try not to choose alcohol containing lotion. Volatile ingredients only make the skin easier to dry. 3) The choice of cream should avoid acidic ingredients, which will make the skin thinner and more fragile than if it is acidic or the like. 4) The use of Chinese herbal medicine ingredients can repair damaged sebum layer, repair skin in time, and manage skin condition.