only on his ears.
It would be really complicated as I'd have no way to get a pass for him to cross borders.
And, the only vet I knew of (some hundreds of miles away) had a reputation of being incompetent.
I adopted this stray kitten about a month and half ago. When he came to my home, he already had this crust-like layer on his ear and bald spots all over his back, but the spots healed and fur grew back on. Only that this crust-like thing wasn't healing. We thought he's sunburned so I kept him in...
