My baby has hand, foot and mouth desease “Virus”

I’ve already taking her to the Er I didn’t know what it was she was having a fever and rash spreading on feet’s hands and sores in her mouth 😢 my poor baby was crying all day.. I couldn’t get her to eat all day yesterday I kept giving her ibuprofen I didn’t help at all so the Er doctor gave her children ibuprofen 5 ml is that ok ?? And they also gave her some magic mouthwash which that help a lot but they didn’t give anything for the rash she seems to be really itchy today her finger tips look swollen from feet and hands what kinds cream did y’all use for your little ones I heard ppl do baking soda but I’m not sure if that’s safe on her skin i been using A+D ointment over the counter seems to help for a few minutes . Any tips would really help right now I’m guessing tomorrow will be the worst day those blister are gonna pop soon on her skin.. 😢😞😭