How can lice be eliminated from an adult? - briefly
Use a pediculicide shampoo or lotion (e.g., permethrin or pyrethrin) according to label instructions, then remove remaining nits with a fine‑toothed comb and repeat the treatment after 7–10 days; wash clothing, bedding, and personal items in hot water to prevent reinfestation.
How can lice be eliminated from an adult? - in detail
Effective eradication of head‑lice infestations in adults requires a combination of direct treatment, thorough combing, and environmental decontamination.
First, apply an approved pediculicide. Options include permethrin 1 % lotion, pyrethrin‑based products, or dimethicone‑based silicone formulations. Follow label instructions precisely: apply to dry hair, leave for the specified duration, then rinse. For resistant cases, consider a prescription‑only agent such as malathion 0.5 % or ivermectin lotion, administered under medical supervision.
Second, perform mechanical removal. After treatment, use a fine‑toothed nit comb on wet, conditioned hair. Section the scalp, comb from scalp to tip in a systematic pattern, and wipe the comb on a white cloth after each pass. Repeat the combing process daily for seven days to capture newly hatched nymphs.
Third, execute a repeat treatment. Because eggs (nits) may survive initial exposure, a second application of the chosen pediculicide is recommended 7–10 days after the first dose, coinciding with the hatching cycle.
Fourth, address personal items and surroundings. Wash clothing, bedding, and towels used within the previous 48 hours in hot water (≥ 60 °C) and tumble‑dry on high heat. Non‑washable items should be sealed in a plastic bag for at least two weeks or subjected to dry‑heat treatment (≥ 50 °C) for 30 minutes. Vacuum carpets and upholstery, then discard the vacuum bag or clean the canister.
Fifth, educate on preventive measures. Advise avoiding head‑to‑head contact, not sharing personal grooming tools, and inspecting hair regularly after exposure to known infestations.
By integrating chemical therapy, diligent combing, timely re‑treatment, and thorough cleaning of the environment, adult individuals can achieve complete elimination of lice and prevent recurrence.