Allergic Reaction: Symptoms, Diagnosis, Treatment and Management

Ahmed Elshemy, Mohammed Abobakr
Journal of Scientific & Innovative Research   unpublished
Allergies cause a wide range of symptoms, from the common problems that everyone has heard of such as a runny nose, nasal congestion, sneezing; watery, itchy, red eyes; and itchy ears, to less obvious problems like a tickle in the throat, cough, asthma, wheezing, and shortness of breath, hives, eczema, bee sting reactions, and so forth. Fatigue is also common in allergy season. The older antihistamines which cause drowsiness didn't help with fatigue but now the newer antihistamines generally
more » ... amines generally don't cause drowsiness. People develop allergy problems because of an overactive immune system in which certain gamma globulins are overproduced by the body. Gamma globulins are normally present to fight bacterial infections. In the case of allergies, one of the gamma globulins (called IgE) functions abnormally and views the allergens (e.g. cat dander) as being foreign bacteria-so the IgE attempts to "kill" it. When IgE attaches to the pollen, a barrage of chemicals including histamine are released into the body from cells called Mast cells, and as a result patients are left with allergic symptoms.