Our expert says:
Dear Concerned mom
It may be safer to keep him at home - this could be viral, especially if it is a fine red rash that feels coarse to the touch. Watch him for fever and swollen glands. You could try to give him an antihistamine like 5 ml Phenergan syrup and see if it goes away - it will probably if it is an allergy. Otherwise rather let your GP have a look.
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