How can you get rid of lice on hair? - briefly
Apply an approved lice treatment (e.g., permethrin or dimethicone shampoo/cream) and thoroughly comb out nits with a fine-toothed lice comb, then repeat the process after 7–10 days to eliminate any newly hatched insects.
How can you get rid of lice on hair? - in detail
Eliminating head lice requires a systematic approach that combines chemical or physical treatment, thorough cleaning of personal items, and preventive measures to avoid reinfestation.
First, choose an effective lice‑killing product. Over‑the‑counter shampoos or lotions containing 1 % permethrin or 0.5 % pyrethrin are recommended for most cases. Apply according to the label: saturate the scalp, leave the solution on for the specified time (usually 10 minutes), then rinse thoroughly. For resistant infestations, a prescription‑only preparation such as 0.5 % malathion or 0.05 % ivermectin may be required; these should be used under medical supervision.
Second, remove any surviving insects and eggs (nits) mechanically. Use a fine‑toothed nit comb on wet, conditioned hair. Start at the scalp and work outward, cleaning the comb after each pass. Repeat the combing process at least twice a day for seven days, then again after 10 days to catch any newly hatched lice.
Third, decontaminate personal belongings. Wash clothing, bedding, and towels used within the previous 48 hours in hot water (≥ 130 °F/54 °C) and dry on high heat. Items that cannot be laundered should be sealed in a plastic bag for two weeks or placed in a freezer at –4 °F (–20 °C) for 24 hours. Vacuum carpets, upholstery, and car seats to remove stray hairs that may contain nits.
Fourth, limit direct head‑to‑head contact and avoid sharing combs, hats, or hair accessories until treatment is complete. Regularly inspect all household members; treat anyone who shows signs of infestation promptly.
Finally, monitor the situation. If live lice are observed after the second treatment round, repeat the chemical application and combing regimen. Persistent cases may indicate resistance or incorrect application, warranting consultation with a healthcare professional for alternative therapies.
By following these steps—appropriate medicated treatment, diligent nit removal, thorough environmental cleaning, and strict avoidance of cross‑contamination—head lice can be eradicated effectively.