How to eliminate lice with chemical water? - briefly
Use a pediculicide solution containing 1% permethrin or 0.5% malathion diluted in water, apply to the scalp, leave for the recommended time, then rinse thoroughly; repeat the treatment after seven days to kill any newly hatched nits. Follow with a fine-toothed comb to remove remaining eggs and wash all bedding and clothing in hot water.
How to eliminate lice with chemical water? - in detail
Chemical aqueous treatments can eradicate head‑lice infestations when applied correctly. The method relies on a solution that combines a pediculicide with a solvent capable of penetrating the insect’s exoskeleton. Common active ingredients include permethrin, malathion, or newer synthetic pyrethroids dissolved in water‑based carriers.
The procedure consists of several precise steps. First, select a product that specifies a concentration appropriate for human use, typically 0.5–1 % active ingredient. Verify that the formulation is labeled for scalp application and that it contains a surfactant to enhance spreadability.
Apply the solution to dry hair, ensuring full coverage from scalp to tips. Use a calibrated spray bottle or a fine‑mist applicator to distribute the liquid evenly. Massage gently for 30–60 seconds to promote absorption into the nits and adult lice.
Leave the treatment on for the duration indicated on the label, usually 10–15 minutes. During this period, avoid rinsing, drying, or exposing the scalp to heat, as these actions reduce efficacy.
After the exposure time, rinse hair thoroughly with lukewarm water. Comb the hair with a fine‑toothed lice comb, removing dead insects and detached eggs. Repeat the combing process at least twice, at 24‑hour intervals, to capture any newly hatched nymphs.
A second application of the chemical solution is recommended 7–10 days after the first treatment. This timing aligns with the life cycle of lice, targeting those that survived the initial exposure as eggs.
Safety considerations include wearing gloves during application, avoiding contact with eyes and mucous membranes, and keeping the solution out of reach of children. Individuals with known hypersensitivity to the active ingredient should use an alternative method.
Effectiveness depends on proper dosage, thorough coverage, and adherence to the repeat‑treatment schedule. Studies show eradication rates above 90 % when these conditions are met, while incomplete application or premature rinsing can lead to treatment failure.
Maintain a clean environment by washing bedding, hats, and hair accessories in hot water (≥ 60 °C) and vacuuming upholstered furniture. This reduces the risk of reinfestation from residual lice or eggs.
In summary, an aqueous chemical regimen eliminates lice by delivering a potent pediculicide directly to the scalp, followed by systematic removal of residual organisms and preventive hygiene measures.