Stromectal -- a pill containing ivermectin, a drug used to prevent heartworm in dogs -- kills head lice resistant to first-line treatment better than malathion-based lotion.

An NIH panel of outside advisors urges a change to hospital rules and doctor guidelines that keep many women who've had a C-section from opting for a natural birth in later pregnancies.

A severe diarrhea-causing germ once thought to only affect the elderly or seriously ill is now affecting a growing number of healthy children

Platelet-rich plasma -- injections of a patient's own blood platelets -- heals of tennis elbow better than cortisone shots, a study finds.

One in six Americans between the ages of 14 and 49 have genital herpes and close to 1 in 2 black women are infected, new figures from the CDC reveal.