How to disinfect combs after lice? - briefly
Immerse the comb in hot (≥130 °F) water with detergent for 10 minutes, then submerge it in a 10% bleach solution or 70% isopropyl alcohol for another 5 minutes, rinse thoroughly, and allow it to air‑dry completely. This eliminates any remaining nits and eggs.
How to disinfect combs after lice? - in detail
After an infestation, the comb used to remove lice must be sanitized to eliminate any remaining eggs or nits. Failure to do so can re‑introduce the parasites to the host or to other family members.
Immediate preparation
- Rinse the comb under running water to dislodge hair, debris, and visible insects.
- Use a soft brush or toothbrush to scrub the teeth, ensuring no residue remains in the gaps.
Effective disinfection methods
- Boiling water – Submerge the comb in water at a rolling boil for at least 5 minutes. The temperature destroys both lice and their eggs. Allow the instrument to cool before handling.
- Alcohol immersion – Place the comb in 70 % isopropyl alcohol for 10 minutes. Alcohol penetrates the crevices and kills any surviving organisms. Rinse with clean water afterward to remove residual alcohol.
- Diluted bleach solution – Mix 1 part household bleach with 9 parts water (approximately 5 % chlorine). Soak the comb for 10 minutes, then rinse thoroughly to avoid corrosion.
- Dishwasher cycle – Position the comb on the top rack and run a hot wash cycle (minimum 140 °F/60 °C). The combination of heat and detergent provides reliable sterilization.
- Commercial lice‑kill sprays – Apply a product labeled for lice eradication according to the manufacturer’s instructions, ensuring complete coverage of the teeth. Rinse afterward if the label advises.
Drying and storage
After disinfection, pat the comb dry with a clean towel or let it air‑dry on a sterile surface. Store the instrument in a sealed plastic bag or airtight container to prevent re‑contamination until the next use.
Additional precautions
- Replace the comb after several treatment cycles if the teeth become worn or damaged, as imperfections can harbor eggs.
- Keep all personal grooming items separate from those of untreated individuals.
- Perform the cleaning process after each combing session throughout the treatment period, typically every 2–3 days, to maintain a lice‑free environment.