How can adults get rid of lice? - briefly
Apply a permethrin‑ or pyrethrin‑based lice treatment according to the label, then remove remaining nits with a fine‑toothed comb. Repeat the application after 7–10 days and launder clothing, bedding, and personal items in hot water.
How can adults get rid of lice? - in detail
Adults dealing with a lice infestation should follow a systematic approach that combines chemical and non‑chemical methods, thorough cleaning of personal items, and ongoing monitoring.
First, treat the scalp with an approved pediculicide. Apply a 1% permethrin lotion or a 0.5% malathion shampoo according to the product label, leaving it on for the recommended time before rinsing. Repeat the application after 7–10 days to eliminate newly hatched nymphs.
Second, remove live insects and eggs mechanically. Use a fine‑toothed nit comb on damp hair, working from the scalp outward. Perform the combing at least twice daily for a week, then once every other day for another week.
Third, decontaminate personal belongings. Wash clothing, bedding, and towels in hot water (≥ 130 °F/54 °C) and dry on high heat for at least 30 minutes. Seal non‑washable items in a sealed plastic bag for two weeks, as lice cannot survive without a host beyond this period.
Fourth, treat the environment. Vacuum carpets, upholstered furniture, and car seats thoroughly; discard the vacuum bag or clean the canister immediately. Apply a residual insecticide spray to hair‑bearing surfaces only if recommended by a professional.
Fifth, prevent re‑infestation. Avoid sharing combs, hats, or headphones. Inspect hair daily for several weeks, focusing on the nape and behind the ears. Encourage household members to undergo simultaneous treatment if exposure is suspected.
If over‑the‑counter products fail, consult a healthcare provider for prescription‑strength options such as ivermectin or benzyl alcohol lotion. Persistent symptoms after two treatment cycles warrant medical evaluation to rule out resistance or secondary infection.