Hi mummy!
My son recovered from HFMD a month ago.
What I did was I chilled his milk until it’s cold for him to drink. He refuses room temperature or warm milk cause of the pain in his throat so cold milk works!
You can try that :)
And yes, the moment they get better they will look for whatever they have been rejecting!
My LO rejected porridge for 5 days but I still tried to feed him daily and on the 6th day he finally accepted it again.
My advise is continue giving him :)
Sheila nasheqa