How should vinegar be diluted for fighting lice? - briefly
Use a solution of one part white distilled vinegar to three parts water (1 : 3) and apply it to the scalp and hair. For sensitive skin, a slightly weaker mixture of one part vinegar to four parts water (1 : 4) may be preferable.
How should vinegar be diluted for fighting lice? - in detail
Vinegar can be used as a supplemental agent in lice management when mixed with water at an appropriate strength. A solution of one part white distilled vinegar to three parts tap water (approximately 25 % vinegar) provides sufficient acidity to loosen nits without causing excessive irritation. For children with sensitive skin, a milder mixture of one part vinegar to four parts water (20 % vinegar) is advisable.
To prepare the solution, measure the liquid using a clean container, combine the ingredients, and stir until uniform. Pour the mixture into a spray bottle or a shallow basin for easy application. Before use, perform a patch test on a small area of the scalp; wait five minutes to ensure no adverse reaction occurs.
Apply the diluted vinegar to dry hair, focusing on the roots and behind the ears where nits are most common. Allow the liquid to remain for five to ten minutes, then comb through with a fine-toothed lice comb to remove detached eggs. Rinse the hair with lukewarm water and repeat the process every 24 hours for three consecutive days to break the lice life cycle.
Store any leftover solution in a sealed container, refrigerate, and discard after seven days to prevent bacterial growth. Avoid using undiluted vinegar directly on the scalp, as the high acidity can cause burning, redness, or dermatitis. Combine this method with conventional lice treatments for optimal results.