Head Lice Treatment and Recheck Guidance

Starting treatment without clear evidence can cause unnecessary exposure to products and stress for children.

Use a comb check, indicative scan, or clinic confirmation to establish whether active lice are likely before choosing a pathway.

Wet combing with conditioner on damp hair helps detect and remove lice and nits. Work in small sections from scalp to ends.

Comb every three to four days for at least two weeks after the last live louse is found. Consistency matters more than one intensive session.

Over-the-counter treatments can be appropriate when lice are confirmed. Always follow the product label and check age suitability.

If live lice remain after a completed course, seek professional advice before switching products repeatedly.

Plan a structured recheck on day 5, day 9, and day 12 after starting treatment or intensive combing.

Empty nit shells can remain attached as hair grows — focus on whether new live lice or fresh viable eggs appear near the scalp.

Check close contacts even if they have no symptoms. Treat only those with evidence of activity.

Wash bedding and hats on a hot cycle and avoid sharing brushes during the active period.

Book follow-up if live lice persist after two treatment cycles, if irritation is severe, or if you cannot tell whether nits are new or old.

Professional confirmation reduces repeated guesswork and helps families exit the treatment loop faster.