How should kerosene be diluted for lice treatment? - briefly
Kerosene should not be used for lice control; there is no safe dilution ratio. Medical‑grade pediculicides are the recommended treatment.
How should kerosene be diluted for lice treatment? - in detail
Kerosene must be mixed with a non‑flammable carrier to reduce toxicity and improve spreadability. The commonly accepted ratio for a lice‑control formulation is one part kerosene to nine parts distilled water, creating a 10 % solution. For individuals with sensitive skin, a 5 % mixture (one part kerosene to nineteen parts water) may be used.
Preparation steps
- Measure the required volume of kerosene with a calibrated container.
- Add the measured kerosene to a clean, heat‑resistant mixing vessel.
- Slowly pour distilled water into the vessel while stirring continuously with a stainless‑steel spoon or a low‑speed electric stirrer.
- Continue stirring until the mixture appears uniform and no separate layers are visible.
- Transfer the solution to an airtight, amber‑colored bottle to protect it from light.
Application guidelines
- Apply the diluted solution to dry hair, focusing on the scalp and the roots where lice attach.
- Use a fine‑toothed comb to distribute the liquid evenly and to dislodge nits.
- Leave the preparation on the hair for 15–20 minutes; do not exceed 30 minutes to avoid skin irritation.
- Rinse thoroughly with warm water and a mild, non‑oil‑based shampoo.
- Repeat the treatment after 7 days to eliminate any newly hatched lice.
Safety precautions
- Conduct a patch test on a small area of skin 24 hours before full application.
- Perform the procedure in a well‑ventilated area; avoid open flames or sparks.
- Wear disposable gloves and protective eyewear during mixing and application.
- Store the solution out of reach of children and pets, in a temperature‑controlled environment below 25 °C.
Disposal
- Empty any remaining mixture into a sealed container and label it as hazardous waste.
- Dispose of the container according to local regulations for flammable liquids.
Following these precise steps ensures the kerosene‑based preparation is effective against lice while minimizing health risks.