A patient who is receiving the sulfonamide medication, trimethoprim/sulfamethoxazole for an urinary tract infection. On entering the room the nurse notices the patient presents with a red-to-purple rash that is reported as painful. Which response by the nurse is most appropriate?

"I can get a bath started. Sitting in the tub can help with the itching"

"This is an expected side effect. The symptoms are harmless and will go away within a day or two

“I will administer diphenhydramine to reverse these symptoms."

"I will stop this medication immediately and consult your physician for further orders"