Red, itchy scaling plaques on a toddler

A girl aged 2 years presented to the dermatology clinc with a pruritic rash. The rash began on the toddler's cheeks when she was just a few months old but has since spread to involve her wrists, elbows, knees, and abdomen.

The girl's mother reported that the rash comes and goes and is associated with pruritus. No medications are applied ...