Bump on the eyelid; Stye
Always wash your hands thoroughly before touching the skin around your eye. If you are susceptible to styes, it may help to carefully clean off excess oils from the edges of your lids.
Mueller JB, McStay CM. Ocular infection and inflammation. Emerg Med Clin North Am. 2008;26:57-72.
Rubenstein JB, Jick SL. Disorders of the conjunctiva and limbus. In: Yanoff M, Duker JS, Augsburger JJ, et al, eds. Ophthalmology. 2nd ed. Philadelphia, Pa:Mosby Elsevier; 2004:chap 55.
Neff AG, Carter KD. Benign eye lesions. In: Yanoff M, Duker JS, Augsburger JJ, et al, eds. Ophthalmology. 2nd ed. Philadelphia, Pa:Mosby Elsevier; 2004:chap 92.