If you see a green frog that is sick or injured, the best thing to do is to call a wildlife rehabilitator. They will be able to help the frog and release it back into the wild when it is healthy again. There are some things you can look for to determine if a frog is sick or injured. If the frog has mucus coming out of its nose, if its skin looks slimy or swollen, or if it’s lying on its side respirating slowly, then it is likely that the frog is sick. If the frog has any broken bones, bleeding wounds, or parasites, then it is likely that the frog is injured.