An allergy is a reaction of a person's immune system to a normally harmless substance, one that doesn't cause problems for most people. READ MORE

Ocular Allergies

Allergies can affect various organs, including the eyes. Symptoms include itching, redness, lid swelling, tearing, light sensitivity, "grittiness" and swollen eyes.

Conditions & Treatments

Experimental Injection May Protect Against Peanut Allergy

Researchers report that a new drug injection might offer at least temporary protection against the most severe reactions.

Allergies

Asthma: It's Different When You're Older

Asthma can develop for the first time in midlife. Triggers that might never have bothered you before can now be a problem, and the symptoms can be more serious for adults.

Menopause & Aging Well

Prevent Mold Growth at Home

Mold can thrive in places from logs and fallen trees to bathrooms and kitchens.

Allergies

Signs of a Food Intolerance

If you feel bloated, headachy or nauseated after eating certain foods or you get a runny nose or feel jittery after drinking certain beverages, you may have a food intolerance.

Nutrition & Movement