Alexander I. Spira, MD, PhD, of The US Oncology Network, discusses findings from the COCOON trial that show prophylactic ...

Ticks are more than just a nuisance—some of them carry serious diseases like Lyme and Rocky Mountain Spotted Fever.

Learn when rashes signal medical emergencies. Color, location, and symptoms reveal dangerous conditions needing urgent care.

Swimmer's itch is a skin rash caused by an allergic reaction to microscopic parasites that infect some birds and mammals, according to the Centers for Disease Control and Prevention.

An armpit rash has many causes ranging from contact dermatitis and irritants to bacterial and yeast infections. Learn the common causes and how to treat them.

Dermatologists break down the most common circular rashes that aren’t ringworm, including hives, lupus, and atopic dermatitis. See pictures here.

Low-dose doxycycline proved to be equally as effective as high-dose doxycycline for the treatment of scarring alopecia, with fewer adverse events, according to a study.Patients with scarring ...

Also, the rash was not in areas exposed to the sun, so it was not the doxycycline. Was this just the patient’s eczema? When she was younger, she had eczema on her ears, hands, and the inside of her ...

Lower doses of a common antibiotic can curb hair loss caused by a rare skin condition, a new study says. The antibiotic doxycycline is commonly used to treat lymphocytic scarring alopecia, a ...

Allergic reactions can trigger sudden skin changes One of the most common causes of hives or a rash is an allergic reaction. The skin can react to various allergens, including foods, medications ...

ANSWER: It isn’t always easy to tell whether a rash from an antibiotic, particularly a penicillin-type antibiotic, is a serious allergic reaction. A rash is a common occurrence when an ...