Breathing through the mouth during sleep may cause this problem. If you’re experiencing pain from a sore throat, consult with your doctor. Throat irritation caused by CPAP may be relieved by following these tips:
- Wear a chin strap with your nasal mask to maintain a closed mouth while you sleep.
- Use a full-face mask that covers your nose and mouth.
- Use a heated humidifier that fits your CPAP to moisten and warm the air going into your throat.