A nurse is reinforcing discharge teaching with a client who has asthma and a new prescription for salmeterol. Which of the following instructions should the nurse include?

This medication will provide long-term control of your asthma symptoms.

Once your symptoms have improved, you should discontinue use of this medication.

Salmeterol is an anti-inflammatory medication that decreases mucous secretion.

You can take an extra dose of salmeterol if an asthma attack begins.