A female has hypopigmented lesion on centre of forehead drug, responsible is:
D i.e. Para tetra butyl phenol Dermatology 3/e p. 92; Fitzpatrick's 7/e p-135-145; Rooks 7/e p.17.7-17.37; Roxburgh's 17/e p- 105-109] - Most common cause of air borne contact dermatitis (ABCD) in India is pahenium hysterophorus (congress grass) plantQ - Metal most commonly l/t allergic contact dermatitis (ACD) is nickel (Ni)Q and drug is neomycin. Whereas detergentQ are most common cause of ACD in Indian females. - Para-tetra (p-test)-Butyl phenol formaldehyde glue (resin) on BindiQ is most common cause of ACD or hypopigmentation on centre of forehead in Indian females.
Hydroquinone
Mono benzene metabolite of hydroquinone
Para tetra butyl catechol
Para tetra butyl phenol