Icing is beneficial for a long time, I am at 7 months and still do my fair share of icing. You can ice all thru the night. I would put on my ice gel packs in this velcro sleeve around my knee and fall asleep and stay like that all night. In the beginning I would switch it out a time or 2.
I was a bit lacks about icing in the beginning, If I were to do over I would have elevated more nose, above toes and iced more. But you learn from your mistakes, I know now if I ever need to get my second knee done, I know what not to do.
Pain medications, tylenol and advil and things work for pain, but don't always give maybe as much relief as the heavy duty pain pills that are prescribed in the beginning of the recovery period, as it's stated on here, swelling is a form of pain, I know personally I didn't have a lot of bad pain after the first few wks, but I had swelling and still have swelling yet at 7 months out, not bad, but I can feel the tightness.