Just saw your thread today. Obviously best would be to get him to an exotics vet. Ours sewed toes back that were nearly severed and the frog did fine. How is he doing today? He may need antibiotics on the open wound such as cipro. Hope he is all better soon. Gorgeous frog. Is he eating ( would iffer 1-2 wk old crickets). Does he have a shallow water dish ( with clean mountain spring bottled water, not sink water)? Is he in a warm protected place? Thank you for helping him.