The main problem is that hypersensitive immune system, makes mistakes, so it identifies innocuous substances as bad and dangerous for the body and as results of that, immune system starts with attack to the substances with high level of ferocity. Finally result of all this is problems that may be ranged from mildly inconvenient to the uncomfortable feeling. It also confirmed by John Yunginger, M.D., who is a member of FDA's Allergenic Product Advisory Committee. IgE is shortcuts of the immunoglobulin E. This is an antibody which immune system produces with the first time of exposing to the allergens. Next time when you are exposed to the allergen, your immune system will produce lots of igE which will react on the allergy. Allergy may occur at your body for things which may be not problematic for most people. 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. Still, with the words of experts, you may trust to HEPA, which is shortcuts of High Efficiency Particulate Air Filter, which gives results of cleaning air from dust mites. This filter may be placed in each room to your home. This means that you may use this product in your bedroom, living room or anywhere you need. It is very difficult when it is about wheat allergy to use method of avoiding food related with this food. It is because, today there are lots of food that people allergic on it need to avoid. Usually, people try to remove some food on which one they are doubt that influence on allergy. But, it could happen that they enter in the body products, food that is not on their "forbidden" list, but also they have allergic attack. Also, if you are allergic to the dust mites, try to keep your house free of dust, as much as it is possible or use air filters. Still, the majority of the people who are suffering from allergies simply do not success in avoiding causes of their allergic. So, if it is very difficult to you, you may try allergy medicines.