I have the same problem. I think we're just allergic to the material of the head gear or the heat that it causes on our scalp.
Hi I'm new to the forum. People with sleep apnea can really benefit from allergy shots to clear up sinus and throat congestion. Also seeing a snore and sinus doctor can help too. I have suffered with sleep apnea since I was a teen. I have helped myself find answers more than sleep studies and sleep specialist have. After many ENT's etc I went to a Snore and Sinus doctor who was the first to take a CT scan of my sinus cavity. He reported to my that I had a deviated septum and very large turbinates along with a thick toung and very narrow throat due to large tonsils. Therefore my CPAP was not helping me even at a high pressure, no where for the air to go 😔
I had my deviated septum fixed and turbinates removed. Now my passages way is wide open.
What helps me with my mouth dropping at night while sleeping is breathable tape 😊 Placing it over closed lips provents dry mouth/throat which caused me to cough all night. Also eliminate "chipmunk" cheeks☺️ and leaks. I started with a full mask, now I can use a nose mask since I don't need air pressure in my mouth. I have no leaks and it much more comfortable, feels like a have nothing on my face.
1: allergy shots if you suffer from congestion.
2: CT scan of sinuses to check for blockages.
3: Breathable Tape.
4: Test different mask. (I went through 4 types to find the best for me)
Hope this helps.