News — nasal allergies

Allergic reactions can trigger sneezing, wheezing, mucus, coughing, itching and hives. Allergies are not only irritating, but many have been linked to chronic respiratory problems such as sinusitis and asthma. Allergic reactions can range from mild and annoying to sudden and life-threatening. Mast cells are a type of white blood cell which contains histamine, an important natural chemical weapon in the body's arsenal for fighting infection. However too much histamine increases the inflammatory symptoms associated with allergies. Allergy and inflammatory conditions are triggered by contact with allergens that are absorbed into the blood. When allergens meet special immune cells containing...