How should lice be poisoned in the house? - briefly
Apply an EPA‑registered pediculicide to hair and affected surfaces, following the product’s label for dosage, contact time, and safety precautions, then launder bedding and clothing in hot water and vacuum all upholstery. Repeat the treatment after 7–10 days to eradicate any newly hatched nymphs.
How should lice be poisoned in the house? - in detail
Eliminating head‑lice infestations within a residence requires a systematic approach that combines chemical treatment, thorough cleaning, and preventive measures.
First, select an approved pediculicide formulated for indoor use. Products containing permethrin (1 %), pyrethrin, or dimethicone are recommended because they act on the nervous system of the insects or suffocate them without leaving hazardous residues. Follow the manufacturer’s dosage instructions precisely; over‑application increases toxicity risk without improving efficacy.
Second, apply the chemical directly to the affected person’s hair according to label directions. After the prescribed exposure period, rinse thoroughly with warm water. Repeat the application after 7–10 days to target newly hatched nymphs that survived the initial treatment.
Third, treat the environment:
- Wash all bedding, clothing, and towels used within the previous 48 hours in water ≥ 60 °C; dry on high heat for at least 30 minutes.
- Place non‑washable items (hats, scarves, hair accessories) in sealed plastic bags for a minimum of two weeks, preventing re‑infestation.
- Vacuum carpets, upholstered furniture, and floor mats. Empty the vacuum canister into a sealed bag and discard it outside the home.
- Apply a residual spray containing the same active ingredient to hair‑bearing surfaces (cushions, headrests, car seats). Use a low‑pressure fogger to ensure even coverage; allow the area to dry completely before reuse.
Fourth, monitor for recurrence. Conduct visual inspections of hair and scalp three times per week for four weeks. If live insects are observed, repeat the chemical treatment and re‑clean the affected areas.
Finally, implement preventive actions: discourage sharing of personal items, maintain regular hair washing routines, and educate household members about early detection. Consistent adherence to these steps eradicates the infestation and minimizes the likelihood of future outbreaks.