How the Skin Changes After You Pop a Pimple In addition to new pimples ... nodules (hardened acne lesions in deeper tissues) or acne cysts (deep, pus-filled lesions that look similar to boils).

Milia appear as tiny white bumps caused by trapped dead skin cells beneath the surface. These harmless cysts resist popping attempts and require professional extraction by a trained dermatologist ...

They are tiny, harmless cysts that occur when dead skin cells get trapped under your skin, says Dr. Schlessinger. “Picking at them often has little to no effect, and attempting to pop them will ...