In-depth

Alcohol intolerance

Think you have alcohol intolerance? Here's what might be causing your reaction to wine, beer or other beverages.

Bronchiolitis

Bronchiolitis is an infection of the lungs' airways that starts out like a cold but progresses to coughing and wheezing. It's common in infants.

Chronic cough

More than an annoyance, a chronic cough can significantly affect your quality of life. Find out how it's diagnosed and treated.

Chronic daily headaches

Chronic daily headaches strike nearly every day. Aggressive initial treatment and steady, long-term management can help reduce pain and lead to fewer headaches.

Cluster headache

Cluster headaches usually occur repeatedly on one side of your head and cause intense pain that feels like a stabbing sensation in your eye.

Common cold

You've got a cold, or you're trying to prevent getting one. Here are some timely tips.

Common cold in babies

Do you feel as if you're constantly wiping your baby's nose? Learn to recognize, treat and prevent the common cold.

Dust mite allergy

Dust mite allergy, an immune system reaction to inhaled dust mite "debris," causes hay fever symptoms and may cause allergy-induced asthma.

Headaches in children

Children of all ages experience headaches, but the causes aren't all the same. Here's how to help your child.

Influenza (flu)

Don't let the flu set you back. Find out how to protect yourself from getting sick with the flu.

MRSA infection

MRSA is a virulent form of staph bacteria, often contracted in health care settings, that resists most antibiotics. Learn the symptoms and how to prevent infection.

Nasal polyps

Nasal polyps, inflammation-related growths in the nasal passages or sinuses, can block the flow of air and fluid in your nose.

Nonallergic rhinitis

Nonallergic rhinitis is a condition in which the lining of your nose swells, causing a stuffy nose — but no identifiable allergy is involved.

Peanut allergy

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

Roseola

Roseola is a common infection of childhood. The condition causes a fever that lasts several days, followed by a rash on the trunk and neck.

Rubella

Rubella, a contagious viral infection, is most dangerous to pregnant women. Rubella can be prevented with the combined measles-mumps-rubella vaccine.

Swollen lymph nodes

Swollen lymph nodes usually indicate an infection, particularly in children. However, there are many causes, ranging from the common cold to cancer.

Wegener's granulomatosis

Wegener's granulomatosis is an uncommon disease that causes blood vessel inflammation that can damage lungs, kidneys and other organs. Untreated, it can be fatal.

Whooping cough

Whooping cough is a serious lung infection that's especially dangerous in young infants.

Mar. 27, 2013