Yes My Son Had A Infection And Dr Put Him

yes my son had a infection and dr put him on clairthromyc and he had a real bad reaction he thought people were going kill him he was in hospital 5 day he wasn't eating at all now a little but I amworried about is that he sits and stares out in space he still thinks there is people here that not he was a steeler fan that he got into game yelling and cheering but now its like he don't even watch game I want to know is my sons mind going be mixed up like this forever is there anything I can do to help him?/