Histamine in the lungs will cause spasm of the airways or wheezing. If histamine is released from exploding allergy cells into the skin, you may experience itching. If histamine and other allergy cell chemicals are released all over the body, then a severe life-threatening reaction may take place. Allergy has different names. So, allergy really has different names depending upon what part of your body is being affected by the allergy cells and their contents.
Many people are unaware of the fact that the allergy season really never ends.
Allergy specialists look at the calendar year in terms of either the indoor or the outdoor allergy seasons. The indoor allergens which are most likely to cause allergy symptoms during this season are the house dust mites and indoor pets such as cats, dogs and 'pet' cockroaches. The outdoor allergy season occurs when plant life attempts to reproduce itself by releasing billions and billions of male 'plant sperm' in the form of pollen. All pollens are not created equal, however, and some pack more of an allergy punch than others. The most potent allergenic pollens come from the grass family, ragweeds, and the birch and oak trees.