last week i thought i had something stuck under my top eyelid..when i move my eye around-opened or closed- it feels like a grain of sand or something attached to the inside if my eyelid about midway up, under the fleshy part of my eyelid..i can feel it with my finger it is very small..but i dont touch that area alot cause i dont want to get it infected..the outer lid is slightly red..and like i said just looking around normaly feels like i have somthing stuck under my eyelid...gets really agrivating by the end of the day..does anyone know what this is??? stye? chalazion? a friend of mine said he had the same thing and the doc said warm pad 4 times a day on eye plus erythromycin application 2 times a day one eye..help please