How to get rid of lice in a sofa? - briefly
Vacuum the upholstery thoroughly, then treat the fabric with a lice‑killing spray or powder approved for furniture, observing the required contact time. Afterward, encase the sofa in a plastic cover for 24–48 hours, repeat the vacuuming, and launder any removable covers in hot water.
How to get rid of lice in a sofa? - in detail
Lice infestations on upholstered furniture require a systematic approach that eliminates all life stages and prevents re‑infestation.
Begin with a thorough visual inspection. Use a bright lamp and a fine‑toothed comb to locate adult insects, nymphs, and eggs on the surface, seams, and cushions. Mark affected areas for targeted treatment.
Remove all removable covers, throws, and pillows. Wash them in hot water (minimum 130 °F/54 °C) for at least 30 minutes, then dry on high heat. If items cannot be laundered, place them in a sealed plastic bag for two weeks to starve the parasites.
Vacuum the entire sofa, including crevices, under cushions, and the frame. Use a hose attachment to reach deep seams. Empty the vacuum bag or canister into a sealed container and discard it immediately to avoid spreading insects.
Apply a steam cleaner set to a temperature above 130 °F (54 °C). Slowly pass the steam over all fabric surfaces, focusing on seams and folds where lice hide. The combination of heat and moisture kills adults, nymphs, and eggs within seconds.
If steam alone is insufficient, treat the upholstery with an approved pediculicide spray labeled for fabric use. Follow the manufacturer’s instructions regarding dilution, application method, and dwell time. Test the product on a hidden area first to ensure colorfastness.
For a non‑chemical option, sprinkle a thin layer of food‑grade diatomaceous earth onto the sofa, work it into seams with a soft brush, leave for 24 hours, then vacuum thoroughly. The abrasive particles desiccate the insects.
After treatment, allow the sofa to dry completely. Replace cushions and covers only after they have been cleaned or sealed. Maintain a regular cleaning schedule: vacuum weekly, steam clean monthly, and wash removable fabrics regularly.
Prevent future infestations by limiting direct contact with infested clothing or bedding, inspecting guests’ belongings before they sit on the sofa, and keeping pets treated for ectoparasites. A consistent hygiene routine reduces the risk of recurrence.