Làm sạch mụn lẹo ở mắt. Chườm gạc ấm. Không nên tự tay nặn hoặc bóp lẹo mắt. Sử dụng kem kháng khuẩn. Hãy thử các bài thuốc tự nhiên tại nhà. Sử dụng thuốc giảm đau không cần kê toa. Đến gặp bác sĩ.

Given the above summary, write a detailed text in English for it.
Styes are generally caused by chance but can occasionally be caused by exposure of the eye to foreign substances (such as dust or makeup). The stye itself is a small bacterial infection. If you develop a stye, the first thing you should do is clean the area.  Wash your hands thoroughly, then use a cotton ball or clean hands to gently cleanse the stye with warm water. You can also use a special eyelid scrub or diluted tear-free "baby" shampoo. Make certain that both your hands and the cotton balls you use to wash the stye are clean. Otherwise, you may transmit more debris or germs to the area. Styes are most commonly caused by staphylococcal bacteria that gets in a hair follicle or a gland in the corner of the eye, often through touching the eye with dirty hands. Other bacteria, however, can also cause styes. The painful swelling caused by a stye is best treated with warm compresses. Make a warm compress with a clean towel or other fabric dipped in warm water. Place the compress over your eye and let it rest there for five to ten minutes.  After the compress cools, re-soak it with warm water and repeat for another five to ten minutes. Apply warm compresses three or four times a day. Be consistent about this treatment until the stye is gone.  Warm (but not hot) and damp tea bags can also be used effectively as compresses. (Some people recommend chamomile tea bags, which may have soothing properties). The warmth of the compress may cause the stye to shrink or release pus. If this occurs, gently rinse away the drainage. Do not press or squeeze the stye; just apply firm but gentle pressure. Once the pus emerges from the stye, the symptoms should abate fairly quickly. It can be tempting to try to force any pus or debris out of the stye, but resist! Squeezing or attempting to pop a stye can make the situation much worse, spreading or deepening the infection, and may even cause scarring. Buy an over-the-counter antibacterial cream made for treating styes, available at any drug store. If you are unsure about which...