Hand, foot, and mouth

So my poor baby has Hfm and the blisters cover her entire body. Has anyone dealt with this? Tips to help ease her pain besides just around the clock Tylenol. She's 15 months. She's actually taking it so much better than I thought but still is in so much pain that she shakes when she tries to eat😔💔when I took her to the doctor her doctor walked in, looked at her and said, "yep hfm, good luck just wait it out" so is that really all we can do?:( Just wait?