Medically reviewed by Susan Bard, MD Boils are painful, pus-filled, and are caused by infections like Staphylococcus ...

While they aren’t prone to infection, blackheads can become infected if you pick at them. Symptoms may include swelling, pain, and pus. Blackheads are a type of noninflammatory acne, meaning they ...

DEAR DR. ROACH: I watch a lot of skin-care videos by dermatologists. Sometimes they will have a patient who has a very infected and inflamed blackhead, boil or cyst, etc. It seems like the main ...

Bumps that appear on the body can be hard for the average person to detect. Is it a pimple? A boil? A mosquito bite? Dr. Amy Espy-Smith, the area medical director for Concentra, an urgent-care clinic ...

People with hidradenitis suppurativa sometimes receive misdiagnosis for other conditions, including folliculitis and acne. A dermatologist can make an accurate diagnosis. Hidradenitis suppurativa (HS) ...

A painful bump on or around the ear may be a boil, which occurs when a bacterial skin infection develops in a hair follicle or oil gland. Over time, pus collects in the lump. Boil sometimes go away, ...

What Is a Dentigerous Cyst? A dentigerous cyst, also called a follicular cyst, is the second most common type of jaw (odontogenic) cyst. It's a fluid-filled sac that develops in your jawbone over a ...