rash on the crease of a child's arm close-up, atopic dermatitis, or food allergy

allergy rash baby skin dermatitis red health disease scratch itchy infant hand diaper dermatology closeup reaction arm child body allergic eczema kid parents petroleum atopic paraffin sore stones surface heat clothes irritation medicine psoriasis growth dusk ointment prickly sensitive jelly melanin condition toddler forearm itch tenderness waking cream