The Client Tells the Nurse That Her Symptoms Have Become

The client tells the nurse that her symptoms have become worse since she has been using oxymetazoline (Afrin) for nasal congestion. What is the best assessment question for the nurse to ask?

A) "How old is the bottle you are using?"
B) "May I take your temperature?"
C) "Are you using any other inhaled medications?"
D) "How long have you been using the medication?"