How to treat lice with tar soap? - briefly
Apply a tar‑based soap to the affected hair and scalp, massage gently, leave for the manufacturer‑specified duration (usually 5–10 minutes), then rinse thoroughly; repeat the treatment after 7–10 days to target newly hatched nits. Use a fine-toothed comb to remove any remaining eggs after each application.
How to treat lice with tar soap? - in detail
Tar‑based soap can eliminate head‑lice infestations when applied correctly. The product contains coal‑tar, a potent acaricide that penetrates the insect’s exoskeleton, disrupting its nervous system and causing rapid death. Because the active ingredient is oil‑soluble, it adheres to the hair shaft and remains effective for several hours after washing.
Preparation
- Verify that the soap is formulated for scalp use and lists a concentration of coal‑tar between 10 % and 20 %.
- Perform a patch test on a small area of skin 24 hours before treatment to detect possible irritation.
- Gather a fine‑tooth comb, a clean towel, and a mild, fragrance‑free shampoo for post‑treatment washing.
Application procedure
- Dampen hair with lukewarm water; avoid hot water, which can increase scalp irritation.
- Apply a generous amount of tar soap, working it into the scalp and throughout the entire length of hair. Ensure coverage of the nape, behind the ears, and any areas where lice are commonly found.
- Massage gently for 2–3 minutes to distribute the active compound evenly.
- Leave the soap on the scalp for 30 minutes. During this period, keep the head upright to prevent runoff.
- Rinse thoroughly with lukewarm water, removing all residue.
- Follow with a mild shampoo to cleanse any remaining soap, then rinse again.
- While hair is still damp, run a fine‑tooth comb from scalp to ends, removing dead insects and nits. Repeat combing at 2‑day intervals for one week.
Safety considerations
- Do not use on children under six months, on individuals with open wounds, eczema, psoriasis, or known coal‑tar allergy.
- Avoid contact with eyes; if accidental exposure occurs, rinse immediately with copious water.
- Do not combine with other topical insecticides, as chemical interactions may increase toxicity.
- Store the soap in a cool, dry place, away from direct sunlight to preserve potency.
Post‑treatment monitoring
- Inspect the scalp daily for live lice or viable nits.
- Maintain clean bedding, hats, and personal items; wash them in hot water (≥ 60 °C) or seal in plastic bags for two weeks.
- If live insects persist after two full treatment cycles, consult a healthcare professional for alternative therapy.
Following these steps maximizes the efficacy of tar‑based soap while minimizing adverse reactions, providing a reliable method for eradicating head‑lice infestations.