After the first cycle of treatment for head lice, apart from home eradication measures and regular nit combing, patient may return to class with retreatment in a week's time.

After the first cycle of treatment for head lice, apart from home eradication measures and regular nit combing, patient may return to class with retreatment in a week's time.

• A. Immediately return to class
• B. Return to class after a week with retreatment
• C. Return after two weeks
• D. Only after a complete cure with no recurrence

Answer: (B)

The key idea is timing a second treatment to catch any lice that hatch after the first application. Pediculicides kill the live parasites, but eggs laid before treatment can hatch about 7–10 days later. Giving a second treatment about a week after the first targets those newly hatched lice before they become adults and spread further. Because of this, a child can return to class after the initial treatment is started and a retreatment is planned in about seven days, with ongoing home eradication and nit combing. Waiting longer or requiring a complete cure before returning isn’t necessary, since the second treatment is designed to prevent recurrence from hatched lice. Regular nit removal and cleaning of personal items help reduce reinfestation.

The key idea is timing a second treatment to catch any lice that hatch after the first application. Pediculicides kill the live parasites, but eggs laid before treatment can hatch about 7–10 days later. Giving a second treatment about a week after the first targets those newly hatched lice before they become adults and spread further. Because of this, a child can return to class after the initial treatment is started and a retreatment is planned in about seven days, with ongoing home eradication and nit combing. Waiting longer or requiring a complete cure before returning isn’t necessary, since the second treatment is designed to prevent recurrence from hatched lice. Regular nit removal and cleaning of personal items help reduce reinfestation.