This is an old thread but you may want to look at the newer masks now on the market. Getting the proper fit is vital as my sleep therapist had mine too tight so I adjusted to where I was comfortable with it. This may take some time. I am looking at the nano masks, very small with less straps and improved so there is less noise in the escaping air.
Problems and Solutions With a Full-Face CPAP Mask
By Dhaxel Barqs — From ezinearticles.com May 19, 2010 6,810 11 4
Unfortunately, there are usage issues with CPAP masks that make them less than effective for many individuals. But since this is matter of health, you must find ways to overcome your initial difficulties with them. Here then are the ways to do so.