Dry mouth white tongue have advanced cancer no candidia what is causing it?

Hairy leukoplakia: Patients with immune-suppressed state may develop white confluent patches on the tongue due to epstein barr virus infection. Treatment needs to directed at the underlying condition.

How are you sure it: Is not candida? You do not mention pain (herpangina/vincent's agina is quite painful), did you have head & neck radiotherapy? We use salt/club soda, and i like full strength h2o2 washes, avoid alcohol wash, try a tongue scraper, keep your oral hygiene clean with simple washes, and check your doc about hydration and my questions back to you.

Cancer treatments : Chemotherapy and radiation therapy usually associated with the cancer therapy has a very common side effects on top of those are dry mouth and bacterial imbalance in the oral cavity which causes the white tongue.