Chihirochild - maybe applying some anti-chafing cream at night could help. I guess you probably couldn't put it on when you're wearing the mask if that could compromise the fit - I don't know enough about that stuff to know. But anti-chafing ointment is soothing. If you're allowed to wear makeup, it could help to apply a silicone-based face primer. I was once at a conference in Vegas and my inner thighs started chafing so badly due I guess to the combination of a lot of walking, intense heat, and wearing a dress. I had some face primer on hand and slapped that on the area and it helped SO much.