You can also use fennel, or wormwood to alleviate infection and inflammation of the eye. Personally, I wouldn't fool around with these things, eyes are delicate and important, take him back to the doctor and explain that the medication is doing no good. Children are always rubbing their eyes which pulls out lashes and causes infection. do as much as you can to keep his hands out of his eyes. Is he run down, see the doc to get advice on vitamins and mineral supplements.