Tom

I was able to stay clear long enough for my treatments by using a saliva replacement before I went and then right before I went to the treatment room I would go to the restroom and clean my mouth out good so that there was no mucous in the back of my throat. If there was I would gag and could not keep the mouth piece in. The last two weeks especially a small sip of water just before helped and they always go the mouth piece wet before I used it.

Good luck and know that it does end.

Patty