Sty

Introduction

A stye (sty) is a red, painful lump near the edge of your eyelid that may look like a boil or a pimple. Styes are often filled with pus. A stye usually forms on the outside of your eyelid, but sometimes it can form on the inner part of your eyelid.

Signs and symptoms

• A red lump on your eyelid that is similar to a boil or a pimple
• Eyelid pain
• Eyelid swelling
• Tearing

Prevention

To prevent eye infections:

• Wash your hands.

Wash your hands with soap and warm water or use an alcohol-based hand sanitizer several times each day. Keep your hands away from your eyes.

• Take care with cosmetics.

Reduce your risk of recurrent eye infections by throwing away old cosmetics. Don't share your cosmetics with others. Don't wear eye makeup overnight.

• Make sure your contact lenses are clean

If you wear contact lenses, wash your hands thoroughly before handling your contacts and follow your doctor's advice on disinfecting them.

• Apply warm compresses.

If you've had a stye before, using a warm compress regularly may help prevent it from coming back.

• Manage blepharitis.

If you have blepharitis, follow your doctor's instructions for caring for your eyes.