Hand foot mouth

My 16 month old contracted the hand foot mouth disease and is super miserable, fussy, not really eating/drinking and crying. She would wake up from her nap after 30 misn crying go back to sleep, then again. Night is a bit better but still waking up crying :( she has blisters on her hands and sides of her feet as well as sores in her mouth :(

Wondering what else I can do to help her soothe her pain besides just letting it heal with time. For those whose little one had it before - how long did it take??