Dermatitis: most localized small rashes are caused by dermatitis- an allergic skin reaction. He may have reacted to the sun, to grass or other environmental allergens. Most will go away on their own in a few days. Wash normally, and watch, if the area grows or does not go away, consult your childs Dr.
Answered 12/2/2020
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A doctor has provided 1 answer
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