@PUNKEY,
true - and it is itchy as heck so I doubt the child has hand, foot, mouth!
It could also be viral - my daughter had a reaction where at night she woke up and around her eyes were all swollen. I called the Dr. immediately and the emergency contact said it is likely to be an allergic reaction or something viral - take benidryl and the swollen rashes should go away - just make sure the child can breathe without difficulty - if there is a breathing problem to then bring her to an emergency room right away.
It went away and a day later it happened again -I brought her to the doctors - and after examining came to the same conclusion -with the thought that in most cases, they never determine what virus is causing it. A few more days later and she never had the rash/hives again.
To be safe, if you can - just make sure your child does see a doctor - how long has your child had this rash? You say it isn't bothering her/him? Any temperature or other symptoms - make sure you watch for these things and make note to report to your doctor.