Actually eye stye can be caused by many factors and clogged eyelid glands may be the common one. Besides, heavy make up sometimes can also lead to styes, especially when you share makeup with others. By the way, high pressure have relation with stye. Eye stye always come with red eyes, watery eye, and itchy eys. In general, eye stye won't lead to eye infection if you get proper treatment. Here are some some suggestions for you to notice:
1. Avoid squeezing a stye, because it can cause eye infection. You'd better let itself drain on its own.
2.Put a warm washcloth on your eyelid for several minutes.
3. Stopping wearing contact lense and makeup, in order to prevent eye infection.
4. If your condition has not been improved, you should see a doctor.