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Sty

Symptoms of a Sty

  • A tender, red lump on the eyelid at the base of an eyelash
  • Turns into a small pimple on the eyelid
  • A sty is tender to touch
  • A sty causes mild swelling of the eyelid
  • A sty can cause a watery eye

Causes

  • A bacterial infection of the hair follicle of an eyelash.
  • The most common germ that causes this is Staph.
  • Risk factors. Rubbing the eyes (especially after picking the nose.) The nose is the most frequent home of Staph. Also, more common when using eye makeup.