I got hydrocodone from my doctor which seemed to full the pain a little, make me care a little less about the pain, and sedated me so I could get to sleep a little easier. It definitely wasn't magic that made everything ok.

I take edible cannabis to sleep and tried that during treatment (disclosed to ask my doctor's) and it didn't help with the pain, but did help me not care about it quite as much and helped with my motivation to eat. I didn't take it often, but those days where my calorie count was low or I felt really down, it provided a little distraction and helped me get more calories in.

Good luck. It will end and you will heal, but it takes time and more patience than you might think you have, but you will find it and get through this!