How can lice be removed from a single person? - briefly
Apply an FDA‑approved pediculicide (e.g., 1 % permethrin shampoo) according to the label, then rinse and comb the hair with a fine‑toothed nit comb to extract live insects and eggs; repeat the process after 7–10 days to eradicate any newly hatched lice.
How can lice be removed from a single person? - in detail
Removing head‑lice from one individual requires a systematic approach that combines mechanical elimination, chemical treatment, and environmental control.
First, inspect the scalp thoroughly. Part the hair in sections of 2–3 cm, using a fine‑toothed comb (often called a lice comb) to separate strands. Run the comb from the scalp to the ends, wiping each tooth with a disposable tissue. Repeat this process on every section, then repeat the entire routine after 24 hours to capture newly hatched nymphs.
Second, apply an approved pediculicide if chemical intervention is needed. Choose a product containing 1 % permethrin, 0.5 % pyrethrin, or 0.05 % malathion, following the manufacturer’s instructions precisely: apply to dry hair, leave for the specified contact time, then rinse thoroughly. For resistant infestations, a prescription‑only agent such as ivermectin lotion (0.5 %) may be used under medical supervision.
Third, complement chemical treatment with a second mechanical combing session 7–10 days after the initial application. This targets any surviving eggs (nits) that survived the first treatment.
Fourth, address personal items to prevent re‑infestation. Wash clothing, bedding, and towels used within the previous 48 hours in hot water (≥ 60 °C) and tumble‑dry on high heat. Items that cannot be laundered should be sealed in a plastic bag for at least two weeks or exposed to a freezer at –20 °C for 24 hours.
Fifth, educate the individual about avoidance of direct head‑to‑head contact and sharing of combs, hats, or hair accessories until the infestation is cleared.
A concise protocol:
- Section hair; comb with fine‑toothed lice comb; repeat after 24 h.
- Apply FDA‑approved pediculicide; follow label directions.
- Perform a second combing session 7–10 days later.
- Launder or isolate personal textiles; maintain for two weeks.
- Advise on contact precautions and personal item hygiene.
Adhering to this regimen eliminates active lice and prevents resurgence in a single person.