An overweight 13-year-old girl, with a body mass index of 29, presented with a lump in her axilla for the fourth time in the past several months. This time, the lump recurred in the left axilla; it had developed in the right axilla on 2 other occasions.
A 9-year-old girl presented with these lesions on her face and extremities. The lesions, which had developed within the past 24 hours, were warm to the touch and only mildly pruritic. The child feels unwell with nonspecific complaints of malaise and lack of energy. Before this eruption, she had been healthy and had not been taking any medications.