How can lice be removed with tar soap? - briefly
Apply a warm tar‑based soap to the scalp, let it sit for several minutes, then remove the insects and eggs with a fine‑toothed comb. Rinse thoroughly and repeat the treatment after 7–10 days to catch any newly hatched lice.
How can lice be removed with tar soap? - in detail
Tar‑based soap functions as a pediculicide because the thick, oily composition suffocates insects and disrupts their exoskeletons. The active component, coal‑tar, penetrates the nits’ cement and weakens the attachment of nymphs and adult lice to hair shafts.
Preparation
- Verify that the product is labeled for head‑lice treatment and approved by relevant health authorities.
- Perform a skin‑sensitivity test on a small scalp area 24 hours before full application; discontinue use if irritation occurs.
Application procedure
- Dampen hair with lukewarm water.
- Apply a generous layer of the tar soap, ensuring coverage from scalp to hair tips.
- Massage gently for 1–2 minutes to distribute the formulation evenly.
- Leave the soap on the scalp for the time specified in the label, typically 10–15 minutes.
- Rinse thoroughly with warm water; avoid using harsh shampoos immediately after treatment.
Post‑treatment steps
- Comb wet hair with a fine‑toothed nit comb, starting at the crown and working outward. Remove each louse and nit before discarding the comb.
- Repeat the combing process daily for a week to capture any newly hatched insects.
- Apply a second dose of the soap after 7–10 days, aligning with the lice life cycle, to eliminate any remaining eggs that survived the first round.
Safety considerations
- Do not use on children under two years, on pregnant or nursing individuals, or on individuals with known allergies to coal‑tar.
- Keep the product away from eyes; if contact occurs, rinse immediately with copious water.
- Store in a cool, dry place, out of reach of children.
Effectiveness
Clinical observations indicate that tar‑based soaps achieve a 90 % reduction in live lice after two applications, provided that combing is performed consistently. The occlusive nature of the soap also reduces reinfestation risk by weakening the glue that secures nits to hair.
Limitations
- The strong odor and dark coloration may be undesirable for some users.
- Repeated use can cause scalp dryness; moisturizing conditioners may be applied after the final rinse.
In summary, a systematic regimen of tar soap application, thorough combing, and a follow‑up treatment aligns with the lice life cycle and maximizes eradication while minimizing adverse effects.