How to cure lice in a person? - briefly
Apply a pediculicide shampoo or lotion as directed, then use a fine-toothed nit comb to remove live insects and eggs after each treatment. Repeat the procedure 7–10 days later to eradicate any newly hatched lice.
How to cure lice in a person? - in detail
Treating an infestation of head‑lice requires a systematic approach: identification, medication, mechanical removal, environmental control, and follow‑up.
First, confirm the presence of live insects or nits attached to hair shafts close to the scalp. Use a fine‑tooth comb on wet, conditioned hair under bright light to locate them. If only empty shells are found, treatment may be unnecessary.
Second, apply an approved pediculicide. Options include:
- 1 % permethrin lotion, left on the scalp for 10 minutes before rinsing.
- 0.5 % malathion solution, applied for 8–12 hours and then washed off.
- Dimethicone‑based silicone oil, which suffocates insects without neurotoxic action.
Follow the product’s instructions precisely; do not exceed recommended exposure times. For resistant cases, a second‑line agent such as spinosad (0.9 % suspension) may be used after a 10‑day interval.
Third, perform a thorough combing session 24 hours after the chemical treatment. Use a metal nit‑comb, moving from scalp to tip in 1‑inch sections. Remove each live insect and nits; discard them in sealed plastic.
Fourth, address personal items to prevent re‑infestation:
- Wash clothing, bedding, and towels used in the previous 48 hours in hot water (≥ 60 °C) and tumble‑dry on high heat.
- Seal non‑washable items (hats, hair accessories) in airtight bags for two weeks.
- Vacuum carpets, upholstery, and car seats; discard the vacuum bag afterward.
Fifth, monitor the situation. Repeat the combing process every 2–3 days for two weeks. If live lice reappear after the second chemical application, consult a healthcare professional for prescription‑strength therapy.
Finally, educate all contacts (family members, close friends, classmates) about the signs of infestation and the need for simultaneous treatment to break the transmission cycle.