i would be sure to see his pediatrician and/or pediatric dermatologist. they will most likely do a culture to identify if it is truly ringworm (which is a fungal infection of the skin that appears in worm-like round patches) or if it might be simple eczema or dry skin. using hydrocortisone on a fungal infection without properly addressing the infection could cause the rash to worsen. depending on how much of the body is affected the physician might recommend topical and or oral antifungal medications to get the rash under control.
my 3 year old son has ringworm and it’s spreading. what do i put on it? how long does it take to go away?