What method can remove lice? - briefly
A pediculicide shampoo applied to wet hair, followed by meticulous combing with a fine-toothed lice comb, effectively eliminates head lice. Repeat the process after 7–10 days to eradicate any newly hatched nymphs.
What method can remove lice? - in detail
Effective lice eradication relies on a combination of chemical, mechanical, and environmental tactics.
Chemical agents applied to the scalp kill nymphs and adults. Recommended products include 1 % permethrin lotion, 0.5 % pyrethrin mixed with piperonyl butoxide, and 0.5 % malathion. Follow label instructions precisely: apply to dry hair, leave for the specified duration (usually 10 minutes), then rinse thoroughly. Repeat treatment after 7–10 days to target newly hatched insects that survived the first dose.
Mechanical removal uses a fine-toothed nit comb on wet, conditioned hair. Perform combing in sections, starting at the scalp and pulling the comb toward the hair tips. After each pass, wipe the comb on a paper towel and repeat until no live lice or viable nits are found. A minimum of three thorough sessions, spaced 2–3 days apart, is necessary for complete clearance.
Oral medication may be prescribed when topical options fail or resistance is suspected. Ivermectin 200 µg/kg, administered as a single dose, has proven efficacy. A second dose after 7 days improves success rates. Prescription must be obtained from a qualified clinician.
Alternative botanicals, such as 5 % tea‑tree oil or 1 % neem oil, demonstrate limited activity against lice. Use only as adjuncts to primary treatments; do not rely on them as sole measures.
Environmental control reduces re‑infestation risk. Wash all bedding, clothing, and towels used within the previous 48 hours in water ≥ 60 °C, then tumble‑dry on high heat. Items that cannot be laundered should be sealed in plastic bags for 2 weeks. Vacuum carpets, upholstery, and vehicle seats to remove stray insects and nits.
A structured protocol:
- Apply approved topical insecticide according to label.
- Conduct wet‑combing session 24 hours after application.
- Wash or isolate personal items as described.
- Repeat topical treatment after 7–10 days.
- Perform additional wet‑combing sessions until no lice are detected.
- Consider oral ivermectin if topical failure persists.
Adhering to the sequence and timing eliminates the infestation while minimizing the chance of recurrence.