What are different types of allergic reactions?
The most common types of allergic reactions are caused by things such as food allergies, allergies to plants and pollen, bite of mosquitoes and bee stings. Algie induction allergy can cause a slight serious answer to include gastrointestinal tract, eyes, nose, skin or airways. The reaction time may be within seconds or in case of a delayed reaction, it may take several hours. Most often, the allergic reaction is presented in less than one hour.
All types of allergic reactions are caused by the hypersensitivity of the immune system to the allergen. Any item, a chemical or a substance that causes an allergic reaction is an allergen. There are four different categories of hypersensitivity, although some doctors include the fifth type.
hypersensitivity is classified according to how the allergen induces the reaction of the immune system. The most common is type 1, which is also called an immediate or anaphylactic type. Type 1 hypersensitivity includes common allergic reactions such as seasonal butRgie, reaction to insect bite or stabbing and allergy to food and drugs.
allergic reactions can be mild to life tremendously serious. The most serious allergic reactions of type 1 are called anaphylaxis that can occur in seconds after the exposure to the allergen. Anaphylaxis creates a systemic body reaction and requires immediate medical treatment. There is no only allergen that will always cause a serious response; The incidence of anaphylaxis completely depends on the individual's immune response to any given allergen.
contact allergies are caused by allergens that come into contact with eyes, skin or hair. This type of allergy usually produces, redness, itching and inflammation at a contact point, but can spread to other areas. Eye allergies can produce eye swelling, itching, redness and blurred vision and can be mistaken for contagious Eye infections called Pink Eye. Food allergies often causediarrhea, flatulence, abdominal discomfort, hives or rashes. Hay fever or allergic rhinitis is a very common allergy and is triggered by pollen, mold, animals and dust mites.
among milder types of allergic reactions include hives, mild overload, watery or itchy eyes, itching or grooves and slight overload. More serious types of allergic reactions include difficulty breathing or swallowing, dizziness, fainting, severe diarrhea, fast pulse and abdominal pain. Mild allergic reactions can be treated at home, but more severe types of allergic reactions require rapid treatment of the doctor.