reptile rescue!?

someone tossed this out in my yard today. wound looks 5-6 days old, I doubt I'lll try to sew it up

I hit the old boy (looks like he's 10+) with penicillin and dumped some hydrogenperoxide on it, not sure the ear will be able to be saved. Ol boy stinks bad, but I'll probably toss em in the shower. Don't know if it's just me but I don't see no scales.