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 ...

We've all been there: you're going about your daily routine when suddenly, there's an angry red bump looking at you in the mirror. It's red, it's painful, and it may have a white tip in the center.

Hidradenitis suppurativa (HS) is an inflammatory skin condition that causes painful lumps under the skin that may burst, scar, and form tunnels. Early HS is often misdiagnosed as acne vulgaris, cysts, ...