Health on MSN

What's the difference between a boil and a cyst?

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

How to Identify and Treat a Furuncle (Boil)

A furuncle, also called a boil, is a bump on the skin filled with pus caused by an infection. It can resemble a large pimple, ...