Pityriasis alba is not due to a vitamin deficiency
and is a common
skin condition mostly occurring
in children and usually seen as dry, fine-scaled, pale patches on the face.
No treatment is required and the patches in time will settle in due course of time. The redness, scale and itch if present may be managed with simple emollients and sometimes hydrocortisone, a weak steroid, is also used. Severe cases may require PUVA therapy.