Postboil

Postboil refers to the phenomenon that can occur after a boil has resolved. A boil is a painful, pus-filled bump that forms under the skin, usually caused by a bacterial infection of a hair follicle. Once a boil has drained and the infection has cleared, a lingering tenderness or a small, hard lump may remain in the affected area. This is often referred to as postboil residue or a postboil nodule.

These remaining lumps are typically benign and will gradually dissipate on their own over time. They may feel firm to the touch and can sometimes be slightly sensitive, especially if pressed. In some cases, the skin over the postboil area might appear slightly discolored.

While postboil lumps usually resolve without intervention, persistent or unusually large nodules could warrant medical attention to rule out other conditions. In rare instances, a boil may not fully resolve and could lead to a deeper infection or a persistent cyst-like structure. However, for most individuals, the postboil sensation or lump is a temporary after-effect of the initial infection. Gentle massage of the area might sometimes help to speed up the resolution of any remaining hardness, but it is important to avoid aggressive manipulation.