Substances which you can find anywhere not only in the home, but and spread, and which your body can not tolerate are known as allergens. If you are allergic on some of these allergens, the first contact with some of them, will overreact on your body. Actually, your immune system will produce more antibodies, to beat these substances. Types of Skin Allergies Types of skin allergies may be divided on three separated groups. First is food allergy, second is contact dermatitis, and third is atopy or also known as allergic inhaled dermatitis. Skin allergy not only that may be caused with the creams, body lotions, or other cosmetic products, but also it could be caused with the usage of the certain food, such as: beef, horse meat, eggs, pork, chicken, fish, soy, corn, dairy products, etc. Still, one of the main reasons for developing of the number of allergic symptoms is the home air. With the researching which done US Environmental Protection Agency in 1990, air pollution indoor ranked as "high priority health risk". Products such as air filters or air purifiers are very good, because they are reducing allergens which may cause symptoms of asthma. Still, with standardization of extracts for dust mites and car dander it could get better preparation that may help. When it is about immunotherapy, it should to mention that you can use it, before the doctor doesn't done blood test or skin test for determining what exacts factors influence on causing allergy at you. These things are known as allergens and as reaction to them your body sends symptoms and signals that your immune system is in dangerous. Most Common Allergy Symptoms There are more symptoms that are noted in the moment when your body overreact on the allergens. Some of them are: itchy eye, roof of the mouth and nose, watery eyes, runny and stuffy nose, dark circles under the eyes, sneezing, hives, and face's pressure, especially in area of the cheeks and nose and others. Explanation Of Occurring Gluten Allergy As all allergies and also when it is about gluten allergy, body, your immune system, produce amount number of antibodies, also known as immunoglobulin IgE which are connecting to the basil cells and mast, making inflammation. Usually, when you first time enter in your body gluten, it doesn't react adversely.