Allergies occur when your immune system reacts to a foreign substance such as pollen, bee venom or pet dander 

Allergies are your body’s reaction to a normally harmless substance such as pollen, molds, animal dander, latex, c

The problems of long-standing cough, wheezing, breathlessness, recurrent pneumonia, asthma, sore eyes, skin rash or ecze

A physician who specializes in the diagnosis and treatment of asthma and other allergic illnesses is known as an allergi