A red, painful lump near the edge of the eyelid that may look like a boil or pimple.
Overview
A sty is a red, painful lump, often filled with pus, near the edge of the eyelid.
Symptoms
It may look like a boil or pimple. Sometimes a sty can form on the inner part of the eyelid.
Treatments
In most cases, a sty will begin to disappear on its own in a few days. A warm washcloth applied to the eyelid may relieve pain and discomfort.