Why The Eye Becoming Pink After An Injury?

My daughter's (8 year old) right eye got injured by someone nail at school, after few days of this my daughter’s right was become pink one side white portion. I was taken her to a doctor, he examined and given some eye drop. After 3-4 days we apply the eye drop and stopped as the eye was looking perfectly right. But after few weeks (3-4 week) the right eye was again become pinkish. We again took her to the doctor, that time we took to a different doctor. Doctor examined and said that there was a injury in black portion and a white spot is there and not heeled yet. Doctor gives eye drop Gatilox & IF2. We were used this eye drop for 15 days. After using this eye drop eye was fine for 20 to 30 day. After discontinuing the drop the eye again become pink. Once again we took her to the doctor and they changed the eye drop and given Tobrason & eye refresh gel. we use this medicine for 15 days. During follow-up examination after 15 days doctor said that the wound is completely healed and stop tobrason and continue refresh gel till finished the drop. But few days after the right eye again becoming some time pink specialy at morning and some time white. While using the refresh gel eye become perfectly right but after discontinuing the drop eye remain sometimes pink and some time white. Vision was perfectly OK, no itching sign, no water comes and no pain feel as my daughter said. We can’t understand why the one eye was sometimes pink and some time white. Kindly advice me that again we have to visit the doctor or it will be OK by its own. Kind advice me some alternative medicine or any home remedies.

Thanks