<prompt> 18 yr female with itchy erythema, swelling of toes every winter season seen due toRaynauds diseaseRaynauds phenomenonChilblainsFrost bite  <response>: Answer- C. ChilblainsAlso known as pernio, It is an inflammatory skin condition presenting after exposure to cold as pruritic andor painful erythematous to viloaceous acral lesions.It may be idiopathic or secondary to an underlying disease. 