How to treat a sofa for body lice? - briefly
Strip removable covers and launder them at 60 °C for at least 30 minutes; then vacuum the upholstery thoroughly. Apply an EPA‑registered insecticide spray approved for lice to the fabric, following the product’s label directions.
How to treat a sofa for body lice? - in detail
Body lice infestations on upholstered furniture require a systematic approach that eliminates both the insects and their eggs while preventing re‑infestation. The following protocol covers inspection, cleaning, chemical treatment, and post‑treatment measures.
First, isolate the affected sofa. Remove all removable covers, cushions, and pillows. Place them in sealed plastic bags to contain any live lice or nits during handling. Examine the fabric and seams with a bright light and a fine‑toothed comb; collect any visible lice or eggs for identification.
Second, perform a thorough mechanical cleaning. Vacuum the entire surface, including crevices, using a brush‑attachment to dislodge hidden insects. Empty the vacuum canister into a sealed bag and discard it outdoors. Wash all removable fabrics in hot water (minimum 130 °F / 54 °C) for at least 30 minutes, then dry on high heat. For non‑washable items, expose them to steam for a minimum of 10 minutes, ensuring the temperature reaches 212 °F (100 °C).
Third, apply an insecticidal treatment approved for indoor use on fabrics. Options include:
- Pyrethrin‑based sprays: spray lightly, covering seams and undersides; allow 8 hours of contact before wiping excess.
- Silica‑based dusts: dust into seams and cushions, leave for 24 hours, then vacuum thoroughly.
- Hydrogen peroxide (3 %): mist lightly, let stand for 15 minutes, then blot dry.
Follow the product label for safety precautions, ventilation, and personal protective equipment. Avoid over‑saturation, which can damage upholstery.
Fourth, implement environmental controls. Reduce humidity to below 50 % using a dehumidifier, as low moisture hinders lice development. Maintain regular vacuuming of the sofa and surrounding area for at least two weeks. Wash any bedding, clothing, or personal items that may have contacted the couch in hot water.
Finally, monitor for recurrence. Conduct weekly visual inspections for at least one month. If live lice or viable nits are observed, repeat the chemical treatment and consider professional pest‑control services that can apply residual insecticides or heat‑treatment chambers.
By adhering to this sequence—isolating, mechanically cleaning, chemically treating, controlling the environment, and monitoring—body lice can be eradicated from a sofa, eliminating the risk of ongoing infestation.