One of the most common types of cysts I treat in my office is acneic cysts. These cysts are usually hormonal in nature and are treated with intralesional steroid injections. Our oil glands are controlled by our hormones and oftentimes can get overstimulated. This build-up of oil at the base of the hair follicle contributes to the formation of a slightly painful, pink cyst underneath the surface of the skin. They usually happen along the jaw and chin in women but can happen anywhere on the face, and usually coincide with a female’s menstrual cycle. They can heal on their own over a couple of weeks, but can often leave behind a mark, or what we call post-inflammatory hyperpigmentation.