Allergy - Causes, symptoms, relief & prevention
An allergy is an abnormally high sensitivity to a certain substance, such as dust, pollens, foods, or drugs. Symptoms of allergies commonly include inflammation, sneezing, itching, and skin rashes.Allergies are caused by allergic reactions which occur when your immune system reacts to a foreign substance from the outside world. These foreign substances can come from dust mite wastes, pollens, molds, and many other objects. When these foreign substances stimulate the immune system to send out antibodies then we experience the symptoms of an allergic reaction.