How to eradicate lice in hair?

How to eradicate lice in hair? - briefly

Apply a 1 % permethrin shampoo, leave it on the scalp for the recommended time, rinse, and repeat the treatment after seven days; then comb the hair with a fine-tooth nit comb while it is still damp. Wash all clothing, bedding, and personal items in hot water (≥130 °F) or seal them in plastic bags for two weeks to prevent re‑infestation.

How to eradicate lice in hair? - in detail

Eliminating head lice requires a systematic approach that combines mechanical removal, chemical treatment, and environmental control.

First, confirm the infestation by examining the scalp and hair for live insects and viable nits attached within ¼ inch of the hair shaft. Use a fine-toothed louse comb on damp, conditioned hair to increase visibility and reduce breakage.

Mechanical removal

  • Wet the hair thoroughly; apply a slip‑conditioner to ease combing.
  • Starting at the scalp, run the louse comb through each section from root to tip.
  • After each pass, wipe the comb on a white tissue to detect captured lice.
  • Repeat the process every 2–3 days for at least two weeks to capture newly hatched nymphs.

Chemical options

  • Apply a pediculicide containing 1 % permethrin or 0.5 % pyrethrin, following the product’s instructions precisely.
  • Allow the solution to remain on the scalp for the recommended duration, typically 10 minutes, then rinse.
  • For resistant cases, consider a prescription‑only agent such as 0.05 % malathion or 0.65 % spinosad, administered under medical supervision.

Adjunctive measures

  • Wash all bedding, clothing, and personal items used within the previous 48 hours in hot water (≥ 130 °F) and dry on high heat.
  • Seal non‑washable items in sealed plastic bags for two weeks to starve any surviving lice.
  • Vacuum carpets, upholstered furniture, and car seats to remove stray hairs that may harbor nits.

Prevention

  • Discourage head‑to‑head contact during play and sports activities.
  • Maintain regular hair inspections in schools or childcare settings.
  • Avoid sharing combs, hats, scarves, or headphones.

By integrating thorough combing, appropriate topical treatments, and diligent cleaning of the surrounding environment, the parasite can be eradicated effectively and recurrence minimized.