How can I keep my 4yr old comfortable while he has coxsackie?

Need more info. What symptoms are causing the discomfort? If he has hand foot mouth then homeopathic pulsatilla helps a lot. Keeping fever down helps too. Staying hydrated is important. Tlc goes a long way to keep a child comfortable.
See below. Tylenol (acetaminophen) or Motrin for pain and fever. Lots of fluids. If he has a really sore throat, talk with his doctor about magic swizzle.