Ask her to score her pain, describe its intensity, duration, the site, any relieving measures and what makes it worse, looking for non verbal clues, so you can determine the appropriate method of pain management.

Give her some sedatives so she goes to sleep.

Calculate a pain score, suggest that she takes deep breaths, reposition her pillows, return in 5 minutes to gain a comparative pain score.

Give her any analgesia she is due. If she hasn’t any, contact the doctor to get some prescribed. Also give her a warm milky drink and reposition her pillows. Document your action.