Trump’s doctor says a prescribed skin treatment caused temporary redness on the president’s neck.

Dr. Abigail Waldman, a dermatologist with Mass General Brigham, gives her professional opinion.

LUT014 gel significantly reduces acne-like rashes from anti-EGFR therapies in colorectal cancer patients, improving quality of life. The phase 2 trial showed 70% improvement with high-dose gel, ...

Chemo rash is one of the most common side effects of cancer treatment. These rashes usually aren’t serious, but they can cause pain, itching, and other uncomfortable symptoms. Chemotherapy, also ...