In-depth

Egg allergy

Egg allergy can cause a serious reaction in children and adults. Here's how to recognize egg allergy symptoms, and what to do if a severe reaction occurs.

Obsessive-compulsive disorder

Irresistible urges to repetitively count, check or wash are common obsessive-compulsive disorder symptoms. Treatment can help, so don't let shame hold you back.

Peanut allergy

Peanut allergy can be serious. Find out what you need to know to prevent a life-threatening reaction.

Phenylketonuria

Phenylketonuria is a rare birth defect for which newborns are routinely screened. This rare birth defect requires a special diet to prevent mental retardation.

Poison ivy rash

Poison ivy can cause an itchy, blistering rash. Several self-care methods can help treat this irritating rash and reduce your discomfort.

Seborrheic dermatitis

Stubborn, itchy dandruff can be a sign of seborrheic dermatitis. Find out what you can do to treat this flaky skin condition.

Shellfish allergy

Jun. 29, 2013

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