How to quickly kill lice? - briefly
Apply a 1 % permethrin or pyrethrin shampoo, leave it on the scalp for the recommended 10 minutes, then rinse thoroughly; follow with a fine‑tooth comb to remove nits and wash all clothing and bedding in hot water (≥ 60 °C). Repeat the treatment in 7–10 days to eradicate any newly hatched insects.
How to quickly kill lice? - in detail
Rapid lice eradication requires a combination of chemical treatment, thorough hygiene, and environmental decontamination. Effective products contain either permethrin (1 %) or pyrethrin with piperonyl butoxide. Apply according to label instructions, leave on the scalp for the recommended duration, then rinse thoroughly. Repeat the application after seven days to target newly hatched nymphs.
Physical removal supplements chemical action. Use a fine-toothed nit comb on wet, conditioned hair. Comb from scalp to tips, cleaning the comb after each pass. Perform the process daily for at least ten days; each session reduces live insects and removes eggs stuck to hair shafts.
Environmental control prevents re‑infestation. Follow these steps:
- Wash all bedding, towels, and clothing used within the previous 48 hours in hot water (≥ 60 °C) and dry on high heat.
- Seal non‑washable items (e.g., hats, plush toys) in airtight bags for two weeks.
- Vacuum carpets, upholstery, and vehicle seats; discard the vacuum bag or clean the canister afterward.
- Avoid sharing personal items such as combs, hair accessories, or headgear.
For cases where chemical agents are contraindicated, consider the following alternatives:
- Dimethicone‑based lotions create a coating that suffocates the parasites. Apply generously, leave for 8–12 hours, then rinse.
- Steam treatment of hair and scalp at > 100 °C for several minutes can kill lice and eggs without chemicals; ensure scalp safety.
- Over‑the‑counter ivermectin shampoo (1 %) offers a single‑dose solution; follow medical guidance.
Monitor progress by inspecting the hair and scalp every 24 hours. Absence of live lice after the second treatment and no detection of viable nits after two weeks indicate successful eradication. If live insects persist beyond this period, repeat the recommended chemical protocol or seek professional medical advice.