Sometimes pain in the butt and legs can be due to loss of fat and muscle. Does she have special bedding with extra padding or an air mattress. I get relief at night by sleeping on two heating pads turned low with a pillow under my knees to support my back. I have an adjustable bed but, so far, I'm still sleeping flat.
How much tylenol? I posed this question to my doctor and he said 4 extra strength a day (2 grams) is fine. Is there a reason she doesn't use Advil or Aspirin? I took an advil today because I did too much yesterday but usually it does a number on my stomach.
If she's taking Tylenol she should not drink and maybe add some Tudca or Milk Thistle daily. They are both liver protective.