I too have dry mouth. I drink water constantly. My periodontist suggestes a spray called Oasis and it works wonders. A lot better than the biotene spray. I do get horrible dry mouth at night and sometimes wake up with a very sore throat and gagging due to the dry mouth.

Angelia
31 at Dx.
DX: 4/30/09, 10/21/09 SCC on floor of mouth,
T1NOMO, T2N1M0
TX: 39 IMRT, 8 cisplatin 11/30/09
PET/CT: 11/03/09: Lymph node involvement
PEG/PORT: 11/09
TX end: 02/01/10
PET Scan: 04/05/10 clear
PEG Out: 06/21/10
Biopsy: 12/23/10: fibrosis
HBO: 01/04/11 - ORN
Baby girl born 11-30-12