8 year old boy has itchy rash all over the body, all family members are affected. What is the drug of choice-
Ivermectin
Topic permethrin
Prednisolone
Antibiotics
Ans. is 'b' i.e., Topic permethrin This boy is having scabies. Topical permethrin is the DOC for scabies Treatment of scabies Scabicide Method of use Topical Permethrin (5%) - Drug of choice Single aplication of 12 hour. Gamma benzen hexachloride BHC 1% Single application for a hour Benzyl-Bezoate (25%) Three applications at 12 hourly intervals Crotamiton (10%) Two application daily 14 days o Malathion (0.5%) Oral Ivermectin Single dose 200 mg/kg body-weight, repeat after 2 weeks Note : BHC is not safe in pregnancy and children (< 2 years) as it can cause neurotoxicity