How to cure lice on the head? - briefly
Apply an FDA‑approved pediculicide (shampoo, lotion, or mousse) exactly as directed, then remove live insects and eggs with a fine‑toothed nit comb, washing clothing and bedding in hot water. Repeat the treatment after 7–10 days to eliminate any newly hatched nits.
How to cure lice on the head? - in detail
Treating head‑lice infestations requires a systematic approach that combines chemical or non‑chemical agents, thorough combing, and environmental cleaning.
First, select an appropriate pediculicide. Over‑the‑counter options contain 1 % permethrin or 0.5 % pyrethrin; prescription products may include 0.05 % malathion or 0.2 % ivermectin. Apply the medication according to the manufacturer’s directions, typically to dry hair, leave for the recommended time, then rinse thoroughly.
Second, perform wet combing. After treatment, wet the hair with a conditioner that reduces slip, then use a fine‑toothed lice comb. Start at the scalp, pull the comb through to the ends, and wipe each tooth with a tissue. Repeat the process every 4 hours for 48 hours, then again after 7–10 days to eliminate newly hatched nits.
Third, address resistant infestations. If lice survive the initial treatment, repeat the pediculicide after 7 days or switch to a different class of insecticide. Non‑chemical alternatives such as dimethicone‑based lotions or silicone‑based sprays can be effective without resistance concerns.
Fourth, decontaminate personal items. Wash clothing, bedding, and towels used within the previous 48 hours in hot water (≥ 130 °F) and dry on high heat. Items that cannot be laundered should be sealed in a plastic bag for two weeks or exposed to a freezer at –4 °F for 24 hours.
Fifth, prevent re‑infestation. Advise regular head inspections, especially in school settings. Encourage avoidance of sharing combs, hats, or hair accessories. Maintain a clean environment by vacuuming carpets and upholstered furniture.
Finally, monitor progress. Examine the scalp every 2–3 days for live insects or viable nits. Continue treatment until no live lice are observed for at least one week. If symptoms persist despite repeated interventions, consult a healthcare professional for possible alternative therapies or underlying conditions.