What to do with lice on the skin? - briefly
Apply a topical pediculicide (e.g., 1 % permethrin cream) to the affected area, following the product’s instructions, and repeat the application after 7–10 days to target any newly hatched lice. Wash clothing, bedding, and personal items in hot water (≥ 60 °C) or dry‑clean them to prevent re‑infestation.
What to do with lice on the skin? - in detail
Lice that have settled on the skin require prompt identification and targeted treatment. Begin by confirming the presence of live insects or viable eggs (nits) attached to hair shafts or skin folds. Use a fine-toothed comb under bright light to separate lice from debris; the insects are grayish‑brown and move quickly when disturbed.
Once infestation is verified, apply an approved topical pediculicide. Permethrin 1 % lotion, pyrethrin‑based sprays, or dimethicone creams are common first‑line agents. Follow the product’s instructions precisely: apply to dry hair or skin, leave for the recommended duration (usually 10 minutes), then rinse thoroughly. For resistant cases, oral ivermectin (200 µg/kg) may be prescribed by a healthcare professional; dosage repeats after 7–10 days.
After treatment, remove all visible nits with a fine comb. Perform this step daily for at least one week, as newly hatched lice emerge within 7–10 days. Wash all clothing, bedding, and towels used in the previous 48 hours in hot water (≥60 °C) and dry on high heat. Items that cannot be laundered should be sealed in plastic bags for two weeks to starve the parasites.
Environmental decontamination includes vacuuming carpets, upholstered furniture, and vehicle seats. Discard hair accessories, combs, and brushes; if reuse is necessary, soak them in hot water (≥50 °C) for 10 minutes. Personal hygiene measures—regular bathing, keeping hair trimmed, and avoiding close head‑to‑head contact—reduce the risk of re‑infestation.
Monitor the situation for two weeks. If live lice reappear, repeat the topical treatment once more and reassess compliance with cleaning protocols. Persistent infestation despite two treatment cycles warrants medical evaluation for alternative therapies or underlying conditions that may compromise treatment efficacy.