About two months ago I rescued a baby ball python. He had bad scale rot and humidity blisters. The guy I got him from said he couldn't remember the last time he was fed. Since I've had him the scale rot and blisters are all cleared. But I can't get him to eat. I was able to force feed him once, but I haven't been successful since. He is getting very thin. I have tried live and frozen mice and rats. I've tried assist feeding, and like I said I force fed once. I just don't know what else to try. Any suggestions?