How long should you keep chemerichnaya water for lice? - briefly
«Chemerichnaya water» should remain applied for 30–45 minutes before rinsing; extending the exposure beyond one hour provides no additional benefit and may increase skin irritation.
How long should you keep chemerichnaya water for lice? - in detail
The preparation known as “chemerichnaya water” is applied as a topical treatment for head‑lice infestations. The exposure period determines the efficacy of the active compounds and must be observed precisely.
The solution should remain on the scalp for 15 – 20 minutes after thorough saturation of hair and skin. This interval allows the insecticidal agents to penetrate the louse exoskeleton and reach the eggs (nits). Extending the contact time beyond 20 minutes does not increase effectiveness and may increase the risk of skin irritation.
After the prescribed duration, the hair must be rinsed with lukewarm water. No shampoo or conditioner should be used immediately; a gentle rinse removes residual liquid while preserving the treatment’s effect.
A repeat application is recommended 7 days later to target any newly hatched lice that survived the initial exposure. A second cycle after 14 days can be added in severe cases or when reinfestation is suspected.
Key points for optimal results:
- Apply the solution to dry hair, ensuring complete coverage from scalp to hair tips.
- Use a fine‑toothed comb to distribute the liquid evenly.
- Maintain the 15 – 20 minute contact time without interruption.
- Rinse thoroughly with lukewarm water; avoid detergents.
- Repeat the treatment after 7 days; consider a third application at day 14 if necessary.
Observing these intervals maximizes the probability of eradicating both adult lice and their eggs while minimizing adverse skin reactions.