I have had a stye in the outer corner of my left eye for more than two weeks now. how can i treat it? can i use terramycin?

Try heat: While many styes are infected, antibiotics generally cannot easily get to them. Heat is very effective. Try soaking a washcloth in the very warm (not hot) water tap and putting it on the stye for 4 minutes at a time about 5 times per day. The frequency is important - 2-3 times will usually not work. If persistent after a week of this see your ophthalmologist.

Warm compresses: Apply warm compresses to the area several times daily for about 10 to 15 minutes. But be sure it is a stye. If there is any question, see an ophthalmologist.