One of the most usual allergies that caused with the airborne pollen is allergies on the pollen with the symptoms of hay fever. This type of allergies usually is starting up in the early spring or also in the early autumn. At last, depending of factors, allergies may also be caused by medications. Reasons Why People Are Getting Allergies The most important for healthy of all people is immune system. 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. Your immune system in that case produce antibodies which are ready for "fitting" with these substances, recognized as harmful to your organism. Actually, these substances are not harmful to you, but your immune system mistakenly believes that they are. When it is about food allergies, allergic symptoms are affecting of various parts of the body, but the most usually are in gastrointestinal track, respiratory system, cardiovascular system and at last skin. The best method for treating food allergy is maximum avoiding of the food on which you are allergic. When it is about medical treatment, there are not certain medical drugs which you may enter in your body to protect yourself from food on which you are allergic. One of the medical treatment is also known as epinephrine or also known as adrenaline. On the other side, gluten allergy is actually immunological and it may in some extremely situation to cause condition known as anaphylaxis or in the worst situation death. The most usual symptoms of gluten allergy are: swelling, especially in area of the tongue and mouth, asthma, red rash on the skin and hive or also called "urhicaria". Still, it needs days when it is about cat allergy for starting with symptoms. The most often symptoms when it is about cat allergy are: Wet, red colored, itchy and swollen eyes Areas of the skin covered with the red color Sneezing, Runny nose and post nasal drip Wheezing and coughing Stuffed up ears Nasal congestion and others Controlling of Cat Allergy The best solution is avoiding of the symptoms which cause allergy at you.