The resulting infection causes a stye (or “hordeolum ... or oral antibiotics for infections that have spread beyond your eye and – in severe cases – medications that subdue your immune ...

and styes. Keratisis sores, which form on the cornea (the clear protective outer layer of the eye), are usually caused by an eye infection. However, eye disorders such as severe dry eye can also ...

Styes are usually not related to any disease and do not harm the eye or vision. You mention your son's immune system. Although any persistent skin infection should alert you to possible low ...