Pityriasis Lichenoides et Varioliformis Acuta (PLEVA) is also known as Mucha-Habermann disease.  The eruption often appears suddenly in children and young adults.  At onset the lesions are erythematous macules, papules or papulovesicles, which tend to be brownish red in color, ranging from 5-15 mm in size and evolve through stages of crusting, necrosis and varioliform… Read more »