Several days after this toddler began treatment for tinea capitis, she developed a widespread itchy eczematous eruption on her neck and trunk. In many areas the papules progressed to edematous red papules and pustules. She continued on griseofulvin, and the eczematous lesions cleared within 2 weeks. These lesions are typical of the autoeczematous id reaction associated with inflammatory tinea capitis and should be distinguished from an allergic reaction to the medication. In some children the id reaction is severe enough to juistify the administration of oral steroids.
This child was being treated for tinea capitis with griseofulin. Several days into therapy she broke out with patches of scale and erythema over her neck and trunk. She developed pruritic pustules over the next 12 hours. The resolution of these lesions paralleled that of her scalp infection