bacteria on microscope

Shield Your Eyes (or Not?): Are Styes Contagious?

That painful red bump on your lower or upper eyelid near your eyelashes is not just any bump or pimple. That’s a stye, an infection of your eyelash follicle. Though painful, a stye is your body’s inflammatory response to a bacterial infection. It is also a common eye problem in adults. The Staphylococcus bacteria are …

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