Stye

A stye is a painful red bump on the rim of the eyelid that may look similar to a boil or a pimple. They are often caused by a bacterial infection in the hair follicle of an eyelash. 

Risk factors for developing a stye include poor eyelid hygiene, rubbing or touching the eyes, wearing contact lenses for an extended period, and certain underlying medical conditions such as diabetes.

Most styes resolve on their own within a few days to a week. It is important to avoid squeezing or popping them since the infection may reach to other parts of the eyelid or eye. Warm compresses applied to the affected area might help reduce inflammation and facilitate healing. Antibiotic eye drops or ointments may be recommended in some circumstances to speed up the healing process and prevent complications.

If a stye does not improve after a week, gets very painful, or interferes with vision, it is best to see an eye doctor.