How should vinegar be correctly diluted for lice treatment?

How should vinegar be correctly diluted for lice treatment? - briefly

Mix one part 5 % white distilled vinegar with three parts water (approximately a 1:3 ratio) and apply to the scalp, leaving it for 5–10 minutes before combing out the lice. Use this solution only once daily and rinse thoroughly afterward.

How should vinegar be correctly diluted for lice treatment? - in detail

Vinegar must be diluted to a safe concentration before applying it to the scalp for lice control. Use a 5 % acetic‑acid solution (the typical household white or apple cider vinegar) and mix it with water in a 1:1 ratio for most users. For children under six months, reduce the mixture to 1 part vinegar and 2 parts water to limit skin irritation.

Preparation steps

  • Measure 100 ml of vinegar.
  • Add an equal volume of lukewarm water.
  • Stir gently to ensure uniform distribution.
  • Transfer the solution to a clean spray bottle or a cotton‑ball applicator.

Application protocol

  1. Separate hair into sections with a fine‑tooth comb.
  2. Saturate each section with the diluted mixture, avoiding direct contact with eyes and mucous membranes.
  3. Allow the solution to remain on the scalp for 10–15 minutes. The acidity helps loosen nits from hair shafts.
  4. Rinse hair thoroughly with warm water.
  5. Follow with a second combing session using a nit comb to remove detached eggs.

Safety considerations

  • Perform a patch test on a small skin area 5 minutes before full application; discontinue if redness or burning occurs.
  • Do not use concentrations higher than 5 % acetic acid, as stronger solutions can cause chemical burns.
  • Store the mixture in a sealed container away from direct sunlight; discard after 48 hours to prevent bacterial growth.

Frequency Apply the diluted solution once daily for three consecutive days, then repeat after a week to target any newly hatched lice. This schedule aligns with the typical 7‑day life cycle of the parasite.