Magic mouthwash was the best thing for me and sleeplessness is a real issue with all the opioids. Try melatonin for sleep, it's natural and helps a ton with sleeplessness. The saliva thickness and gagging junk will eventually go away, but it was very unpleasant.

Type and stage of cancer:1st - SCC left base of oral tongue non HPV, T3N1M0 hemi-glossectomy 60 node rem, radX35 carboplatnum &Erbitux X6, Peg tube, lost 55 lbs
2nd - SCC right base oral tongue, surgery, Cisplatin & Erbitux x 16
3rd - SCC right base oral tongue, surgery, hope.