Here three years past treatment I still have nasty sinus drainage that wants to hang in my throat. It seems worse at night, ie I wake up in the morning needing to hack and spit.

Gargling with salty water helps; just don't make it too salty as it might burn his throat.

Something I didn't know about while in treatment, but have found since is Selzer water from Walmart. 12 pack of 12 oz cans is less than $4 and it works wonders on removing the crud. Before you buy a whole 12 pack, buy one 32 oz bottle ($0.68) and try it. Be careful, his throat may be pretty sensitive to even something this strong right now. But it works wonders for me.

Good luck, keep fighting, you and hubby will get there, we will help.

Tony, 69, non-smoker, aerobatics pilot, bridge player/teacher, avid dancer (ballroom, latin, swing, country)

09/13 SCC, HPV 16, tonsillectomy, T2N0.
11/13 start rads, no chemo
12/13 taste gone, dry mouth,
02/14 hair slowly returning
05/14 taste the same, dry sinuses, irrigation helps.
01/15 food taste about 60% returned, dry sinuses are worse in winter.
12/20 no more sinus problems, taste pretty good