How to apply dichlorvos for lice? - briefly
Apply a 0.2 % dichlorvos solution to dry, infested hair, covering the scalp and shafts completely; leave it on for about 10 minutes, then rinse thoroughly with water. Repeat the treatment after 7 days to eliminate any newly hatched lice.
How to apply dichlorvos for lice? - in detail
Dichlorvos, an organophosphate insecticide, is effective against head‑lice infestations when applied correctly. Use only the formulation labeled for human use, typically a liquid concentrate or spray.
Before treatment, read the product label and safety data sheet. Verify that the user is not allergic to organophosphates and that the environment is well‑ventilated. Wear disposable gloves and avoid contact with eyes or open wounds.
Application procedure
- Dilute the concentrate according to the manufacturer’s instructions, usually 1 ml of dichlorvos per 100 ml of water.
- Saturate a clean cloth or spray bottle with the solution.
- Apply the liquid directly to the scalp, ensuring coverage of hair shafts from root to tip.
- Focus on areas behind the ears, at the nape of the neck, and any visible nits.
- Allow the solution to remain on the hair for the time specified on the label, commonly 10–15 minutes.
- Rinse hair thoroughly with lukewarm water; do not use shampoo during the rinse unless the label permits.
After rinsing, comb the hair with a fine‑toothed nit comb to remove dead insects and eggs. Repeat the combing process at 24‑hour intervals for three consecutive days to capture any newly hatched lice.
Dispose of used cloths, gloves, and any leftover solution in a sealed container placed in a trash bin outside the home. Store any remaining product in its original container, locked away from children and pets.
If irritation, excessive salivation, or respiratory distress occurs, seek medical attention immediately and inform the healthcare provider that dichlorvos was used.
Adhering to these steps maximizes efficacy while minimizing health risks.