Welcome in H.C.M.
I have gone through your query regarding off and on fever, sore throat
and itching in feet which disturbe the sleep as well.
Considering these symptoms and analysing them I am suspecting that your daughter is suffering from viral fever
. Some times these fevers are associated with rashes or tinny very irritating small erruptions.
You may add anti allergic like fexofenadine
with the current medication for getting relief.