How to wash hair to remove lice and nits? - briefly
Use a fine-toothed nit comb on wet hair after applying a medicated or regular shampoo with water hot enough to loosen lice (about 130 °F), then rinse thoroughly and repeat the treatment after 7–10 days to eliminate any newly hatched eggs. Finish by drying the hair completely and laundering bedding and personal items to prevent re‑infestation.
How to wash hair to remove lice and nits? - in detail
Washing hair to eliminate head‑lice and their eggs requires a systematic approach that combines chemical treatment, mechanical removal, and thorough rinsing.
Begin by selecting an appropriate pediculicide shampoo or conditioner containing 1 % permethrin, 0.5 % pyrethrin, or a dimethicone‑based formula. Verify that the product is labeled for both live insects and attached ova. Apply the solution to saturated hair, ensuring full coverage from scalp to tips. Follow the manufacturer’s timing instructions, typically 10 minutes, then rinse with warm water.
After chemical exposure, remove residual nits with a fine‑toothed comb. Place the comb near the scalp and pull each strand straight, moving the comb in 1‑centimeter increments toward the ends. After each pass, wipe the teeth on a clean cloth or rinse in a bowl of water to prevent re‑depositing eggs. Continue combing until no live insects or eggs are visible, usually requiring 15–20 minutes for an average adult head.
Repeat the entire process after 7–10 days, as any surviving nits may hatch during this interval. A second wash with the same product, followed by another thorough combing session, maximizes eradication.
For optimal results, incorporate these supplemental measures:
- Wash all bedding, clothing, and towels used within the previous 48 hours in water ≥ 60 °C or seal them in airtight bags for two weeks.
- Vacuum carpets, upholstered furniture, and vehicle seats to remove stray insects.
- Avoid sharing combs, hats, or hair accessories until treatment is complete.
Monitor the scalp for at least two weeks after the final wash. Persistent itching may indicate a secondary reaction rather than ongoing infestation; if symptoms continue, consult a healthcare professional for alternative therapies.