How to treat a sofa for lice? - briefly
Remove cushions, vacuum all seams, then steam‑clean the upholstery and apply an approved lice spray or powder, allowing it to dry fully. Wash any removable covers in hot water and repeat vacuuming after 48 hours to eradicate remaining nits.
How to treat a sofa for lice? - in detail
Lice infestations on upholstered furniture require a systematic approach to eradicate both adult insects and their eggs. Begin with a thorough visual inspection. Use a bright light and a magnifying lens to locate live lice, nymphs, and ovoids on seams, cushions, and the underside of the fabric. Mark areas where activity is confirmed.
Next, remove all detachable covers, pillowcases, and blankets. Wash them in hot water (minimum 130 °F/54 °C) for at least 30 minutes, then tumble‑dry on high heat. This step kills insects and prevents re‑contamination.
For the sofa itself, follow these steps:
- Vacuum – Run a high‑efficiency vacuum over the entire surface, paying special attention to creases, cushions, and armrests. Immediately empty the canister into a sealed bag and discard it outdoors.
- Steam – Apply a garment steamer set to 212 °F/100 °C. Move the nozzle slowly across the fabric, ensuring the steam penetrates the fibers. Steam destroys eggs and adult lice without chemicals.
- Chemical treatment – If steam alone is insufficient, apply an EPA‑registered insecticide labeled for indoor fabrics. Follow label instructions precisely: spray a thin, even coat, avoid oversaturation, and keep the area ventilated. Allow the product to dry completely before use.
- Natural alternatives – For households preferring non‑synthetic options, spray a solution of 70 % isopropyl alcohol mixed with a few drops of tea‑tree oil. Alcohol evaporates quickly and kills insects on contact. Test a hidden spot first to confirm fabric tolerance.
- Repeat – After 7 days, repeat vacuuming and steaming. This interval targets any eggs that may have hatched after the initial treatment.
Prevent future infestations by maintaining a regular cleaning schedule: vacuum weekly, wash removable fabrics monthly, and avoid placing infested clothing or bedding on the sofa. Seal any cracks or gaps in the surrounding walls and floor to limit the movement of lice from other areas.