I have pink eye about half the time I catch a cold. It's caused by my touching my nose or mouth and then touching my eyes. The first time I had it I went to the doctor who did give me drops but he said that they may or may not help and that the best thing I could do would be to use warm wet compresses on my eyes, be sure to not touch my eyes unless I had just thoroughly washed my hands with soap first and that the pink eye would clear up on it's own.
After that first episode I have not gone to the doctor, have used the warm and wet compresses and been vigilant in not touching my eyes. I would wipe off the goop with the wash cloth.
My mother had pink eye and since she also was having difficulty with her vision as the result of macular degeneration she went to the doctor. He also told her to not worry; that pink eye would resolve its self and it did after a couple of weeks.
I know that's not what you want to hear but it has been my experience that pink eye is like a cold and must run it's course. For me it's not been more than a few days. I do use OTC eye drops to soothe my eyes during the infection. My doctor said to not use drops that advertise that they get the red out.
I suggest taking ibuprofen for the pain and to try warm wet compresses.