My sheltie is about 7-8 yearsold & hes had this problem for a long while now.On his belly he has these yellow scabs and its on his sides too.Hes starting to lose hair on hes belly but its not really that hes shedding its kinda like it never grew.I can tell its itchy because he scratches it and it also has an odor.I think my groomer told my dad that it might have something to do with his liver &I know the best thing to do is to take him to the vet but my parents say they don't have enough money&I cant afford it either.My dog is losing hair on his tail & these scabs are starting to grow near one of his ears 2,& if this makes a difference he is pretty overweight and I feel like such a horrible owner.I REALLY DO LOVE HIM and if there is just some possible way to make him feel better besides going to the vet please help me.Of course I want to take him to the vet but I have high doubts that my parents will change their minds. PLEASE HELP ME, ANY INFO WOULD BE GREAT EVEN TO HELP THE ITCHING.