Medically reviewed by William Truswell, MD Nodular acne is a painful, severe form of inflammatory acne that forms hard lumps under your skin.Over-the-counter treatments do not work for nodular acne, ...

Nodular acne develops deep under your skin, causing painful, red bumps. Topical treatments and oral medications can help to clear up nodular acne. All acne begins with a trapped pore. Oil (sebum) ...