Hand, mouth, and foot constantly have fever, is it normal?

Patient's question:

2.5-year-old child, fever for 2-3 days, found rash around the mouth today, a few on the hands, still feverish, is this normal?

Doctor's answer:

There may be symptoms related to viral infection, which can be regulated by taking the Chinese medicine Er Ding Granules, applying Acyclovir Ointment externally, developing good living habits, and avoiding harmful stimuli.