Boils are painful, pus-filled, and are caused by infections like Staphylococcus aureus. Cysts are painless, non-infectious growths filled with keratin or other substances. Antibiotics may treat boils ...

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

A pilar cyst, sometimes called a trichilemmal cyst, forms when a hair follicle gets clogged. They can happen anywhere on your body but are most common on the scalp. Pilar cysts can be irritating but ...