eyelash horned frog worry

Hey guys and gals, whats shakin?
anyway, i just bought an eyelash horned frog, and ive kept it in a separate tank from my other frogs for about 3 weeks. Lately it has developed cuts on its not, like it has been rubbing the skin off. I know its signs of being depressed, and im not sure what to do. Also, on the two ridges on his back, the skin is peeling and opening becoming and open wound, i do not know how, however im afraid it will get infected. if anyone has any experience with this type of from please contact me, i know about red eyed tree frogs, whites tree frogs, monkey tree frogs (all kinds) mostly tree frogs and i need some help with this guy. i can get pictures on here it ya guys need them, just ask.

Thanks
Lee