How should benzyl benzoate for lice be used?

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How should benzyl benzoate for lice be used? - briefly
Apply the benzyl benzoate solution to dry, clean hair, ensuring thorough coverage of the scalp and hair shafts, leave it on for about 30 minutes, then rinse thoroughly; repeat the treatment after 7 days to eliminate any newly hatched lice.

How should benzyl benzoate for lice be used? - in detail
Benzyl benzoate is a topical pediculicide that requires precise preparation and application to achieve effective eradication of head‑lice infestations. Follow these steps:

Preparation of the solution

Dilute the concentrate to a 25 % (w/v) mixture using a suitable carrier such as mineral oil or a non‑ionic surfactant.
Mix thoroughly until the solution appears homogeneous; any undissolved particles reduce efficacy.

Pre‑treatment measures

Separate the hair from clothing and remove accessories that could trap the liquid.
Wash the scalp with a mild shampoo, rinse, and towel‑dry; residual moisture must be minimal to allow optimal skin absorption.

Application procedure

Apply the diluted product evenly over the entire scalp, extending to the hair shaft down to the nape of the neck and behind the ears.
Use a fine‑toothed comb or a spray bottle to ensure thorough coverage; avoid excessive pooling.
Allow the preparation to remain on the hair for 30 minutes. During this period, keep the patient still to prevent runoff.

Post‑treatment actions

Rinse the scalp with warm water and a gentle shampoo to remove residual chemical.
Comb the hair with a fine lice comb to extract dead nymphs and eggs.
Dispose of the comb, wash clothing and bedding in hot water (≥ 60 °C) or seal them in a plastic bag for 48 hours.

Repeat schedule

Re‑apply the treatment after 7–10 days to target any newly hatched lice that survived the first exposure.
Do not exceed three applications within a 4‑week period to avoid skin irritation.

Safety considerations

Test a small skin area 24 hours before full application to detect possible hypersensitivity.
Avoid contact with eyes, mucous membranes, and broken skin; if exposure occurs, rinse thoroughly with water.
Keep the product out of reach of children; store in a cool, dry place away from direct sunlight.

Adhering strictly to these instructions maximizes the pediculicidal effect of benzyl benzoate while minimizing adverse reactions.