Medical for Boston

My son was bitten by a dog that we adopted by the York SPCA. He had plastic surgery and will possibly need surgery in the future. Not to mention Dr appointments and medication. Not sure if there is any action I can take on the SPCA.  They assured me the dog was ok around children and tragically the dog bit his face, ripping his lip almost completely off his face. There is a chance the surgery won't take, we should know in about a week. Any donations would be greatly appreciated! Prayers for Boston!!!