Which of the following is done for the quick diagnosis of Erythrasma ?
Ans is'd i.e. Wood's lamp examination(Ref. IADVL text book of dermatology 3d/e p. 236).Erythrasma is caused by infection by Coryneform bacteria.Wood's lamp examination is a commonly used test to diagnose Erythrasma.Lesion shows coral red fluorescence dre to coproporphyrin III production by the bacteria.
Biopsy
KOH examination
Culture and sensitivity
Wood's lamp examination