How can a bed be treated for lice? - briefly
Wash all linens in hot water (≥130 °F) and dry on high heat, then vacuum the mattress, bed frame, and surrounding area thoroughly; apply an EPA‑approved lice spray or powder to the mattress and let it dry before re‑covering.
How can a bed be treated for lice? - in detail
Treating a mattress that harbors lice requires a combination of mechanical removal, chemical treatment, and environmental control.
First, strip the bed of all linens, pillowcases, blankets, and mattress protectors. Place each item in a sealed plastic bag and launder on the hottest setting the fabric can tolerate (≥130 °F/54 °C) for at least 30 minutes. Dry on high heat for a minimum of 20 minutes to kill any surviving nymphs or eggs.
Next, address the mattress surface itself.
- Vacuum – Use a high‑efficiency vacuum equipped with a HEPA filter. Move the nozzle slowly over the entire mattress, paying special attention to seams, tufts, and folds. Empty the vacuum bag into a sealed container immediately after use.
- Steam – Apply saturated steam (≥212 °F/100 °C) for 5‑10 seconds per spot. The heat penetrates fabric layers, destroying eggs and adult insects. Allow the mattress to dry completely before proceeding.
- Insecticide – Select a product labeled for lice on bedding (e.g., permethrin 0.5 % spray). Lightly mist the mattress, avoiding oversaturation. Follow the manufacturer’s contact time, usually 8‑12 hours, then ventilate the area.
After chemical application, encase the mattress in an approved lice‑proof cover. The cover should be zippered, airtight, and remain in place for at least two weeks, the typical hatching period for lice eggs.
Finally, maintain a lice‑free environment:
- Keep bedroom temperature low (≤70 °F/21 °C) to discourage egg development.
- Reduce clutter that can harbor insects.
- Inspect and treat any adjacent furniture (nightstands, chairs) using the same vacuum‑steam‑insecticide sequence.
Repeated inspection every 2‑3 days for two weeks ensures any residual infestation is detected and eliminated.