Hi there,
Back in 2008 had tonsil cancer and it was in 3 lymph nodules one being almost 8cm, so I had 35 rounds of radiation which amounted to 70 Gy and 3 rounds of the platinum-based chemo Cisplatin. In looking back at my notes, it took me about 10 months to get most of my tastes back and not have alcohol not burn as much and have my dry mouth the best since I that treatment began.
On the positive side, when my taste buds started coming back, I actually enjoying more healthy vegetables that I never liked before and some sweats were even sweater. Good luck and safe journey.

Best,

Rob