Dd who is 3 has come home from nursery with gunky eyes which the nursery teacher pointed out and told me it had been doing the rounds for a few weeks. They have said she can return to nursery 24 hours after starting treatment. I have managed to get her a gp appointment but I know the gp is very reluctant to prescribe antibiotics as she had it before and I was told just to bathe it. Question is how long will it take to clear without treatment?