How should bedding be treated to eliminate lice? - briefly
Wash all sheets, pillowcases, blankets, and pillow covers in water at 130 °F (54 °C) or hotter for at least 10 minutes, then dry on the highest heat setting. If laundering is impossible, place the items in sealed plastic bags for two weeks to kill the parasites.
How should bedding be treated to eliminate lice? - in detail
Treating linens, pillows, and mattress covers to eradicate head‑lice infestations requires a combination of high‑temperature washing, thorough drying, and, when necessary, chemical disinfection.
First, launder all removable fabrics. Use water at a minimum of 130 °F (54 °C) for at least ten minutes; this temperature kills both adult lice and nits. Add a regular detergent; a small amount of bleach (5 % chlorine) may be included for white items, but avoid bleach on colored fabrics to prevent fading. After washing, place the items in a dryer on the highest heat setting for a minimum of 20 minutes. The heat exposure eliminates any surviving insects and their eggs.
Second, address non‑washable items. For mattresses, futons, and upholstered furniture, apply a steam cleaner that reaches at least 212 °F (100 °C). Direct the steam nozzle to seams, folds, and crevices where nits may be lodged, moving slowly to ensure sufficient heat penetration. Allow the treated surfaces to dry completely before re‑covering.
Third, use a lice‑specific insecticide spray only when heat methods are insufficient. Choose a product labeled for fabric use, containing 1 % permethrin or 0.5 % pyrethrin, and follow the manufacturer’s instructions precisely. Apply the spray in a well‑ventilated area, covering all surfaces evenly. After the recommended contact time (usually 10 minutes), wipe the fabric with a clean, damp cloth and allow it to air dry.
Finally, prevent re‑infestation by encasing mattresses and pillows in zippered, lice‑proof covers. Wash these covers regularly on the same high‑heat cycle. Keep bedding away from the floor and avoid sharing personal items such as hats or scarves.
Summary of steps
- Wash removable linens in ≥130 °F water; add bleach for whites if desired.
- Dry on high heat for ≥20 minutes.
- Steam‑treat non‑washable surfaces at ≥212 °F.
- Apply an approved insecticide spray only when needed; follow label directions.
- Use lice‑proof encasements and maintain regular laundering.
Consistent application of these procedures eliminates the current infestation and reduces the risk of recurrence.