After suffering a sprained ankle from a fall during a baseball game, a client seeks medical attention at an urgent care center. What instructions should the nurse include when discharging this client?

A. Apply ice to affected ankle for 2 to 3 days.
B. Administer opioid analgesia as prescribed.
C. Maintain cold application on and off every 20 minutes.
D. Wrap cold application in a towel before using.
E. Apply heat to affected ankle for 2 to 3 days.