How to use chemical water against lice? - briefly
Apply the aqueous pesticide according to the label‑specified concentration, saturating the scalp and hair and allowing it to remain for the recommended 10–15 minutes before rinsing thoroughly. Repeat the application after 7–10 days to interrupt the lice life cycle.
How to use chemical water against lice? - in detail
Chemical solutions designed for lice eradication must be applied with precision to achieve complete removal while minimizing risk to the host. Begin by selecting a product that contains an approved active ingredient, such as permethrin, pyrethrin, or malathion, formulated as a clear aqueous solution. Verify the concentration complies with regulatory standards and read the label for contraindications.
Prepare the treatment area. Remove excess hair products, wash the scalp with a mild shampoo, and towel‑dry until damp but not wet. Wearing disposable gloves, measure the exact volume indicated for the hair length and density; typical dosing ranges from 5 ml for short hair to 15 ml for long hair. Apply the liquid evenly, saturating the scalp and hair from root to tip. Use a fine-tooth comb to distribute the solution through the strands, ensuring contact with the nits attached to hair shafts.
Allow the solution to remain on the scalp for the prescribed exposure time, usually between 10 and 30 minutes. During this period, avoid rinsing, drying, or exposing the head to heat sources. After the interval, rinse thoroughly with lukewarm water, followed by a gentle shampoo to remove residual chemicals. Rinse again to eliminate all traces.
Repeat the application after seven days to target any newly hatched lice that survived the initial exposure. Throughout the treatment cycle, wash bedding, clothing, and personal items in hot water (≥ 60 °C) or seal them in airtight containers for two weeks to prevent re‑infestation. Inspect the scalp daily with a fine-tooth comb; remove any remaining nits manually.
Document any adverse reactions, such as scalp irritation, redness, or itching, and discontinue use if symptoms persist. Consult a healthcare professional before treating infants, pregnant individuals, or persons with known sensitivities to the active ingredient. Proper adherence to dosage, exposure time, and follow‑up procedures ensures effective eradication of lice with chemical aqueous preparations.