What should you know about vinegar for head lice?

Head lice live on the scalp and feed on blood. Nits are eggs attached firmly to individual hairs, while dandruff and product residue usually brush away more easily. Vinegar may loosen some material on hair, but that is different from killing live lice or preventing eggs from hatching. A close inspection is needed before treating the whole household.

Itchy scalp is common with lice, and itching worse at night can occur, but these symptoms alone do not prove an infestation. Look for moving lice near the scalp or firmly attached eggs close to the roots. A pharmacist, GP, or clinician can help confirm what you are seeing.

Use a recommended head-lice treatment exactly as directed, including any required repeat application. Wet-combing with a fine-toothed lice comb can remove live lice and eggs; work through small sections from the roots and repeat on the schedule advised. Do not combine multiple insecticide products or leave a treatment on longer than instructed.

Check close household contacts and avoid sharing combs, brushes, hats, towels, or bedding until treatment advice is followed. Wash or isolate recently used personal items according to local guidance, but avoid exhausting deep-cleaning routines that do not address lice on the scalp. Keep combing and checking until no live lice are found.

Arrange a GP consultation if you cannot tell whether the finding is lice, treatment has not worked as directed, or the scalp has sores, pus, marked swelling, or spreading redness. Seek urgent help for facial swelling, breathing difficulty, or a severe reaction after a lice product. Children, pregnant people, and anyone with a scalp condition should ask a professional which product is suitable.

Ask how to confirm live lice, which treatment fits your age and health, when to repeat it, and how to comb effectively. Check how close contacts should be assessed, which items need attention, and what to do if itching continues after live lice are gone.