New York, NY -- (SBWIRE) -- 07/18/2018 -- An allergy is a hypersensitivity disorder of the immune system. Allergic reactions occur when a person's immune system reacts to harmless substances called allergens in the environment. Major allergens that affect the immune system are dust mites excretion, pollen, and pet dander. There are different kinds of allergies such as food allergy, skin allergy, dust allergy, allergy to insect stings, drug allergy, and mold allergy. Food allergy is usually caused by the consumption of certain proteins found in food, and can trigger symptoms such as hives and digestive problems. Skin allergy may occur due to medication, immune system disorders, and infections, and can trigger symptoms such as itchy, red, swollen, bumpy, and scaly skin. Dust allergy is caused by dust mites, pollen, pet hair, mold, and cockroaches, and can trigger asthama symptoms. Allergy to insect stings can cause pain, swelling, and redness at the site of the sting. Drug allergy is caused by an allergic reaction of to certain ingredients in drugs, and can trigger symptoms such as skin rash, hives, itchy eyes, and facial swelling. Mold allergy is caused by the spores of small fungi floating through the air, and can trigger symptoms such as watery eyes, runny nose, itchy mouth and sneezing. People can develop allergies at any age, although, young children are highly susceptible to allergic diseases. Some of the common symptoms of allergy are red eyes, itchiness, swelling, runny nose, and asthma attacks. Allergy diagnostics refers to determining the nature of the allergic disease and deciding on its course of treatment. Major tests used for the diagnosis of allergies are skin prick, intradermal, blood, and patch tests.
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