But there is one big exception: Ingrown hair, the painful cousin to the harmless, yet pesky pimple. Ingrown hairs form when a hair follicle can't get past a clogged pore, making the hair curl back ...

Several conditions can cause bumps on the hand, including eczema, ingrown hairs, insect bites, and more. Treatment may depend on the cause. An acne pimple develops when an oil gland becomes ...

Medically reviewed by Casey Gallagher, MD Ingrown hair is hair that grows back into the skin instead of growing out of it after hair removal. It can lead to inflammation, irritation, and discoloration ...