Remedies for hand foot and mouth

Molly • TTC naturally after a successful IVF/ICSI cycle in 2015. Male factor infertility (low sperm count) FET planned for March 2020.
I am 29 weeks 4 days and work in childcare. On Wednesday I woke with a low fever and itchy bumps on top of my hands and feet. Doctor said it looks like Coxsackie (Hand foot and mouth) Let me tell you it is miserable and here it is now Sunday morning and I am lying awake scratchig because it is unbearable. I can take Benedryl but not more than 6 in 24 hrs and that and Calamine lotion aren't enough to help. Anyone have experience with this? What can I do?