I currently have two leopard geckos and have done research and such on them but I still have a few questions that the books and online sources couldn't answer or didn't go into detail enough about. I have a male and female, the female rarely sheds but is in wonderful condition and seems healthy, the male on the other hand sheds a lot more. I know it might be because he is still growing but he's already two 1/2 or so. He sheds off and on about every 2-3 months.
When he sheds he has some problems with getting all of his skin off. It sometimes gets stuck on his toes and he can't get it off so I have to take it off for him. I'm not sure what the problem is but I thought maybe it's because of having too long of nails? Some of his nails are rather long but I didn't read anything about trimming their nails and the female is fine.

any suggestions for that?
My other question is this: While handling my male
leopard gecko and checking him over I noticed that there was a scab sort of thing by his erm...genitals I suppose. If you own a male leopard gecko I think you might know what I'm talking about, there is a little 'flap' of skin on the underside at the base of the tail by the genitals. Anyways, there was a scab sort of thing there and it seemed rather painful. I'm not sure what to do about it. I have concidered taking him to the vet but I'm not sure if they even specialize in lizard care. Any help is welcome. Thanks, and sorry for such a long question.