HI, Our 8 month old is pad trained and at around two months ago had a telescoping colon. Once recovered, he slowly started peeing on carpet. Our house is set up withthree differrent floors with pee pad on each. I am jsut now retraing him to use pee pad again. Part of the struggle is our carpets are full of his scent. Are there professional services that neutralize those and clean urine? Do you think that will help? Also he now rubs his bottom feet on the carpet after eliminating( even if he deposits on the pee pad). Some times he jsut does it to do it. Are there scent glands in his rear pads? Why do it? Biggest point here...is my question of how to retrain our pup ...considering we donot have clean carpets yet either. HE has relearned one room. He is very obedient otherwise. Thank you !