How to eliminate body lice? - briefly
Treat infestation by washing clothing, bedding, and towels at ≥130 °F (54 °C) and applying a 1 % permethrin lotion or similar pediculicide to the skin, then repeat the treatment after 7–10 days. Clean personal items, vacuum living areas, and avoid sharing garments to prevent re‑infestation.
How to eliminate body lice? - in detail
Effective eradication of body lice requires a systematic approach that combines personal hygiene, environmental decontamination, and, when necessary, pharmacological intervention.
First, improve personal cleanliness. Wash the entire body with hot water (minimum 130 °F/54 °C) and a detergent that removes oil and debris. Use a fine‑toothed comb or disposable lice brush to detach insects and nits from hair and clothing. Dry the skin thoroughly; lice cannot survive on damp surfaces.
Second, treat clothing and bedding. Place all washable items in a dryer on high heat for at least 30 minutes, or launder them in water of 130 °F (54 °C) with detergent. Non‑washable fabrics should be sealed in airtight plastic bags for a minimum of two weeks, depriving lice of a host. Vacuum carpets, upholstery, and mattresses, then discard the vacuum bag or empty the canister into a sealed container.
Third, apply topical or oral medications when infestation persists. Recommended agents include:
- Permethrin 1 % cream rinse, applied to the entire body for 10 minutes, then rinsed off.
- Malathion 0.5 % lotion, left on the skin for 8–12 hours before washing.
- Ivermectin 200 µg/kg orally, a single dose repeated after 7 days if live lice remain.
Follow manufacturer instructions precisely; avoid over‑application to reduce resistance development.
Fourth, monitor and repeat. Inspect the skin and clothing daily for at least two weeks. If live insects are observed after treatment, repeat the chosen medication and re‑launder all items. Maintain regular bathing and laundering schedules to prevent re‑infestation.
Finally, educate all household members about the transmission cycle: lice spread through direct skin contact and sharing of contaminated clothing or bedding. Encourage individual towels, avoid sharing garments, and ensure that any new clothing is washed before use.
By adhering to these steps—rigorous personal washing, thorough decontamination of textiles, appropriate use of pediculicides, and ongoing surveillance—complete elimination of body lice can be achieved.