My uncle is having oral cancer and he hv been operated also but now even after operation his cancer is spreading and reached the other side of mouth he also have 2 small pockets of pus on the other side his has swelling on all over his mouth and his will power is very less. Dr. which they were consulted said he can not operate the other side you have to take chemotherapy. Why he cannot be operated on the other side is there any way to cure his cancer please help me prescribe some suggestions plz.