my 7 month old ball python keeps rubbing his bottom "lip" against the glass (as if he's trying to shed) to the point where its imflamed and sore. i'm not sure if it's rot..? please help me... it looks painful. he doesnt seem to be less active and his appetite is always good. I've been putting a&d cream on it everyday. his mouth closes but when you open it up it looks irregular/sore with maybe some scabbing? I just don't have a good herp vet in the area. does it sound like rot?