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By Mayo Clinic staffIf the signs and symptoms of a sty persist or if you've had successive infections, your doctor may want to exclude other possible causes. Some conditions exist that are similar to a sty, but require different treatment. For instance a chalazion — a blockage in one of the small glands in the eyelid — can produce swelling similar to that of a sty.
If your doctor confirms you have a sty, he or she can prescribe treatment or recommend ways to relieve your pain or discomfort. If a sty is ruled out, your doctor may refer you to an ophthalmologist for further examination and treatment. An ophthalmologist is a medical doctor who can provide comprehensive eye and vision care.