Symptoms

Signs and symptoms of a sty include:

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

Another condition that causes inflammation of the eyelid is a chalazion. A chalazion occurs when there's a blockage in one of the small oil glands near the eyelashes. Unlike a sty, a chalazion usually isn't painful and tends to be most prominent on the inner side of the eyelid. Treatment for both conditions is similar.

When to see a doctor

Most sties are harmless to your eye and won't affect your ability to see clearly. Try self-care measures first, such as applying a warm washcloth to your closed eyelid for five to 10 minutes several times a day and gently massaging the eyelid. Contact your doctor if:

• The sty doesn't start to improve after 48 hours
• Redness and swelling involves the entire eyelid or extends into your cheek or other parts of your face