11 Month Baby Has What We Think Hand Foot &

11 month baby has what we think hand foot & mouth disease...irritable, blistery rash on top of hands, all over body, as well as mouth. She has excema as well and rash and excema on her lower legs is red and very itchy. Currently using aquaphor on skin. Would you recommend anything else. She is eating and drinking less and sleeping for short periods of time.