Is the doctor responsible for a child suffering from chronic foot drop and lameness after being injected with a cortisone shot, knowing that the child had a sore throat and the injection was given in the correct place?

A physician has three scenarios: Either he is ignorant of medicine, in which case he is liable and sinful. Or he is knowledgeable in medicine but made a mistake, in which case he is not sinful but is liable. Or he is knowledgeable in the profession, applied the correct procedures, and did not err, in which case he is neither sinful nor liable. So, if you are a physician knowledgeable in your profession and you administered the appropriate injection to the child in the correct place, then you are neither sinful nor liable.