<prompt> A female has a hypopigmented lesion on the centre of the forehead. Drug responsible is?HydroquinoneEther metabolite of hydroquinonePara tertiary butyl catecholPara tertiary butylphenol  <response>: 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. 