Yes Please. My Son Is 15 Years Old. He Woke

yes please. my son is 15 years old. he woke up this morning with a rash on his face chest arms and lefs. i took him to the doctor and she said he had a reactin to a virus he had his week. he also has bronchitis. he was given prednisne and i put benydral cream on him and he is worse. and he feels ike he has a fever. what do i do