I have a pit bull she is a little over a year old. She got infested with fleas. So I took her got her dipped and washed. The fleas are now gone but she is still itching A LOT. When you pet her, her skin feels bumpy. She has sores all over her torso (like she itched herself raw). Its mainly at the base of the tail (where it all started), on her sides, and the shoulders and neck. I can't get her to stop scratching and biting. I don't have money to take her to a vet, so I was wondering if there is something over the counter that will help her. I really need some opinions about what to do.