Lindane cannot be used after a bath/shower due to increased absorption and risk of seizures. Which statement is correct?

• A. Lindane is safe to use after a bath
• B. Lindane cannot be used after bath/shower due to increased absorption, seizures and teratogenicity
• C. Permethrin is ineffective
• D. Avoid treating close contacts

Answer: (B)

Lindane can be absorbed through the skin, and applying it to damp or recently washed skin increases dermal absorption. This heightened absorption raises the risk of systemic neurotoxicity, including seizures, and lindane has teratogenic potential, making its use after a bath or shower particularly dangerous. Therefore, the statement that lindane cannot be used after bath/shower due to increased absorption, seizures, and teratogenicity is the correct one. In contrast, permethrin is an effective alternative with a more favorable safety profile, so saying it is ineffective is not accurate. Treating close contacts is typically recommended to prevent reinfestation, so the idea of avoiding that is also not correct.