A female has a hypopigmented lesion on the centre of the forehead. Drug responsible is?: (A) Hydroquinone, (B) Ether metabolite of hydroquinone, (C) Para tertiary butyl catechol, (D) Para tertiary butylphenol
Answer is D. Hypopigmented lesions in the centre of the forehead suggest chemical leucoderma with para tertiary butyl phenol. Which is a component of bindi. (Therefore hypopigmentation is on central head).