My son has developed a rash in his belly button the fold of his arm and being his knees. It's not bumps just red and itchy any suggestions he's three?

Have it evaluated. There are many types and causes of skin rashes. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, viral or fungal infections can cause rashes on the skin. Insect bites can also be the cause of a rash on the skin. Have it evaluated by a professional and get the appropriate treatment.

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