The rash is observed in approximately five percent of pediatric patients but is rare in adults. The rash, which is often exacerbated by a warm bath, lasts for only a few hours. Erythema marginatum recurs frequently. These freely movable and painless nodules may vary in size from 2 to 10 mm. They occur in more severe cases and last for days or weeks.
Steroids speed their disappearance.
Nodules do not occur in adults.