Leena,

I've had similar concerns about going for tests where they told me I couldn't drink water for some amount of time beforehand. Usually they've responded that it would be OK to swish water around in my mouth and spit it out, if I'm trying to combat severe dryness. Maybe they'll let you do that at least.

Cathy

Tongue SCC (T2M0N0), poorly differentiated, diagnosed 3/89, partial glossectomy and neck dissection 4/89, radiation from early June to late August 1989