The neem oil should help with the skin problems, clipped the tips of their nails a couple days ago and made sure that they were smooth but not for the reason you mentioned. didn't even think about that. ThanksThey are so cute! congrats!
Also watch out for blackheads, sunburn and dry skin. Hairless dogs are extremely prone to those. I groom a lot of cresteds and they all develop blackheads and use special shampoo lol. Also, as a groomer, you might want to get there nails dremeled instead of just clipped when its time so they don't Freddy crouger themselves when itching lol. Just some friendly advice. You have probably thought about all that before getting them lol ?