A stye occurs when one of the many tiny little glands on the edge of the eyelid become clogged up with debris. Once clogged, secretions from the gland back up behind the obstruction, and the result is a red and swollen bump on the eyelid.
Fortunately, styes are a very common medical problem and they are not very serious either, although the can be a bit uncomfortable and can be a little embarrassing cosmetically.
Most styes will improve on their own and do not need any special medications to help them go away. Instead, what you can do is apply warm compresses to the area several times per day. This will help to open up the pore leading into the stye and allow the material insight to drain.
If, after a week or so, you are not seeing improvement you may want to go see your doctor
. Some styes can become quite large and can also lead to an infection. If you notice that the swelling is worsening, or if the skin is quite warm or has an increasing area of redness, you may need antibiotics. Your primary care doctor
will be able to help you figure this out.