How to treat combs for lice and nits?

How to treat combs for lice and nits? - briefly

To disinfect lice‑comb tools, soak them in water at a minimum of 130 °F (54 °C) for 10 minutes or place them in a sealed bag with a lice‑killing spray, then allow them to dry completely. Alternatively, run the combs through a dishwasher’s hot cycle or wash them in a washing machine using hot water and detergent.

How to treat combs for lice and nits? - in detail

Effective sanitation of lice‑comb tools requires a systematic approach that eliminates both live insects and resilient eggs. Begin by removing visible debris with a disposable paper towel or a soft brush. Immediately place the comb in a container filled with hot water (at least 130 °F/54 °C) and a few drops of dish soap; soak for 10 minutes to loosen organic matter. After soaking, scrub the teeth with an old toothbrush, paying special attention to the narrow spaces where nits cling.

For chemical disinfection, transfer the comb to a solution of 70 % isopropyl alcohol or a diluted bleach mixture (1 part bleach to 9 parts water). Submerge for 5 minutes, then rinse thoroughly with clean water to remove residual chemicals. An alternative method involves boiling the comb for 5 minutes; this destroys any remaining eggs and kills lice without the need for chemicals.

Once the comb has been cleaned, dry it completely on a clean towel or by air‑drying in direct sunlight. Store the device in a sealed plastic bag or a dedicated container to prevent re‑contamination between uses.

Step‑by‑step protocol

  1. Remove hair and debris mechanically.
  2. Soak in hot, soapy water (≥130 °F) for 10 minutes.
  3. Scrub teeth with a brush.
  4. Disinfect:
    • 70 % isopropyl alcohol, 5‑minute immersion, or
    • Bleach solution (1:9), 5‑minute immersion, or
    • Boiling water, 5 minutes.
  5. Rinse thoroughly with potable water.
  6. Dry completely; avoid towel‑drying that leaves moisture.
  7. Seal in a clean, airtight container for storage.

Repeated application of this regimen after each treatment session guarantees that the comb remains free of viable lice and eggs, reducing the risk of reinfestation.