Medically reviewed by Casey Gallagher, MD Acne is a common skin condition that affects up to 50 million Americans each year.

Forehead acne often looks like solid red bumps, called papules. You might also see bumps with a collection of pus at the top. These are called pustules.

Currently, there’s not enough research to confirm the benefits of tea tree oil for either acne or HS. Be careful — tea tree oil is toxic if swallowed. It should only be used topically to treat HS.

Sanofi has added to its vaccine pipeline with an agreement to acquire Austria's Origimm Biotechnology and its vaccine-based immunotherapy for people with acne. The French group said that ORI-001 ...

Symptoms of panniculitis may include reddened, tender nodules (indurated areas of the skin) over the chest, abdomen, breasts, face, and buttocks. Diagnosis of panniculitis is most often made by visual ...