How to eliminate head lice using treatments?

How to eliminate head lice using treatments? - briefly

Apply a pediculicide such as permethrin 1% or pyrethrin‑based shampoo, leave it on the scalp for the recommended time, then comb out nits with a fine‑toothed lice comb; repeat the treatment after 7–10 days and wash all clothing, bedding, and personal items in hot water. Continuous removal of live lice and any remaining eggs eliminates the infestation.

How to eliminate head lice using treatments? - in detail

Effective removal of head lice requires a systematic approach that combines chemical or physical agents with diligent follow‑up.

First, confirm infestation by examining hair close to the scalp with a fine‑toothed comb. Visible adult lice, nymphs, or viable eggs (nits) indicate treatment is necessary.

Choose a treatment category:

  • Over‑the‑counter pediculicides (permethrin 1 % lotion, pyrethrin‑based shampoos). Apply according to label, leave on scalp for the specified duration, then rinse.
  • Prescription formulations (malathion 0.5 % lotion, spinosad 0.9 % topical suspension). Use when resistance to OTC products is suspected; follow medical guidance.
  • Physical methods (dimethicone‑based creams, aether‑based sprays). These suffocate insects without neurotoxic chemicals; apply to dry hair, leave for several hours, then wash.
  • Mechanical removal (nit combing). After any chemical or physical agent, comb hair in sections from scalp outward, wiping the comb after each pass.

Implement the chosen regimen:

  1. Apply the product to dry or damp hair as directed; ensure coverage from roots to tips.
  2. Allow the required contact time; do not exceed recommended exposure.
  3. Rinse thoroughly, then wash bedding, clothing, and personal items in hot water (≥ 130 °F) or seal them in plastic bags for two weeks.

Repeat the entire process after 7–10 days to eliminate newly hatched lice that survived the first application.

Additional precautions:

  • Avoid simultaneous use of multiple chemical agents; they can cause irritation.
  • Do not treat infants younger than two months with neurotoxic formulations; opt for silicone‑based options.
  • Monitor for adverse reactions (skin redness, itching) and discontinue use if severe.

Regular inspection for at least four weeks after the second treatment confirms success. Persistent nits after this period may require a professional evaluation.