How to use chlorine water to treat lice? - briefly
Prepare a 0.5 % solution of «sodium hypochlorite» in water, saturate the hair and scalp, leave for ten minutes, then rinse thoroughly with clean water. Repeat the procedure after seven days to eradicate any newly hatched nits.
How to use chlorine water to treat lice? - in detail
Chlorinated water can serve as an alternative method for eliminating head‑lice infestations when applied correctly. The procedure requires precise dilution, thorough coverage, and strict safety measures.
A typical concentration for therapeutic use ranges from 0.05 % to 0.1 % available chlorine. To achieve this, mix one part of household bleach (5–6 % sodium hypochlorite) with 50–100 parts of clean water, depending on the desired strength. Verify the final concentration with a chlorine test strip before application.
The treatment process consists of the following steps:
- Preparation – Wear disposable gloves, protect the surrounding area with a plastic sheet, and ensure adequate ventilation.
- Application – Saturate the hair and scalp with the diluted solution using a spray bottle or a clean pump. Maintain contact for 10 minutes; the solution must remain wet throughout this period.
- Rinsing – After the exposure time, rinse the hair thoroughly with lukewarm water. Avoid the use of shampoos or conditioners until the scalp has dried completely.
- Inspection – Examine the hair under a bright light to confirm the absence of live nits and adults. Repeat the process after 7 days to target any newly hatched lice.
Precautions include:
- Avoiding application on broken skin, irritated scalp, or open wounds.
- Keeping the solution away from eyes, ears, and mucous membranes; immediate irrigation with water is required if contact occurs.
- Not using the method on infants under six months, individuals with known hypersensitivity to chlorine, or pets sharing the treated environment.
Post‑treatment care involves regular combing with a fine‑toothed lice comb, laundering clothing and bedding at temperatures above 60 °C, and vacuuming upholstered furniture. Maintaining these hygiene practices reduces the risk of reinfestation.
When performed with the correct concentration and adherence to safety protocols, chlorinated water provides an effective, low‑cost option for lice eradication without the need for conventional insecticidal shampoos.