How to Sterilize Hairbrushes & Combs Against Lice: Boiling Water Method

Boiling water effectively kills lice, nymphs, and nits on hair tools. Follow this protocol:

Step-by-Step

1. Prepare: Large pot, water, tongs/heat-proof gloves.
2. Boil: Bring water to rolling boil (100°C / 212°F).
3. Submerge: Fully immerse brushes/combs. Ensure bristles/teeth are covered.
4. Time: Maintain boil for 5–10 minutes (10 min for thick brushes).
5. Remove & rinse: Use tongs. Rinse with hot tap water to remove debris.
6. Dry completely: Air-dry on clean towel. Moisture promotes survival.
7. Optional: Fine-tooth comb through after drying to remove residual nits.

Critical Caveats

• Only for heat-resistant materials (plastic may warp; wood cracks). Check manufacturer guidelines.
• Does NOT treat head lice – use FDA-approved pediculicides (permethrin, ivermectin, spinosad) or wet-combing on the scalp.
• Treat all household contacts simultaneously to prevent reinfestation.
• Wash bedding/clothing in hot water (≥60°C) and high-heat dry.

Alternative for Heat-Sensitive Items

Seal in plastic bag for 2 weeks (lice die without blood meal) or use 70% isopropyl alcohol soak (1 hour).