There is nothing you can do at home to help this little guy. He/she needs a Vet immediately! Pawn your computer, sell a piece of furniture
in your driveway, cancel your internet service, DO SOMETHING to get the money to save what is now your responsibilty!!!! This is clearly a bad breeding situation and the breeder needs to have charges filed against him/her. You should have never taken on a pet without being able to provide medical care for it. Like children, they get sick, too.