What can you use to poison lice at home? - briefly
Petroleum jelly, tea‑tree oil, or a diluted vinegar solution can be applied directly to the scalp to suffocate and kill lice. For faster results, combine the chosen agent with a fine‑toothed comb to remove dead insects and nits.
What can you use to poison lice at home? - in detail
To eliminate head‑lice infestations with toxic agents using household resources, consider the following options, each described with active ingredients, application method, and safety precautions.
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Permethrin‑based over‑the‑counter creams – 1 % permethrin lotion or shampoo. Apply to dry hair, leave for 10 minutes, then rinse. Repeat after 7–10 days to target newly hatched nymphs. Avoid use on infants under two months or on individuals with known permethrin allergy.
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Pyrethrin sprays – Extracted from chrysanthemum flowers, formulated at 0.5–1 % concentration. Spray directly onto scalp and hair, cover with a plastic cap for 30 minutes, then wash. Pyrethrin degrades quickly in sunlight; store in a cool, dark place.
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Benzyl‑alkonium chloride (BAC) solution – 0.1 % aqueous solution. Apply with a spray bottle, ensure thorough coverage, leave for 5 minutes, then rinse. BAC is a quaternary ammonium compound effective against lice and their eggs; handle with gloves to prevent skin irritation.
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Isopropyl alcohol (70 %) – Saturate a cotton ball and dab directly onto nits and adult insects. Allow to evaporate; repeat daily for three days. Alcohol is flammable; keep away from open flames and ensure adequate ventilation.
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Essential oil blend (tea tree, lavender, neem) – Mix 10 drops of each oil with 2 tablespoons of carrier oil (e.g., coconut oil). Apply to scalp, leave for 30 minutes, then wash. While not a conventional poison, the blend exhibits insecticidal properties and can complement chemical treatments.
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Sodium carbonate (washing soda) rinse – Dissolve ½ cup in 2 liters of warm water, pour over hair after shampooing, leave for 5 minutes, then rinse. The alkaline environment disrupts lice cuticle integrity; avoid use on damaged scalp.
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Hydrogen peroxide (3 %) – Apply to hair, cover with a shower cap for 15 minutes, then rinse. Oxidative action kills lice and loosens egg shells. Use sparingly to prevent scalp irritation.
Each method requires strict adherence to dosage instructions and protective measures (gloves, eyewear). After treatment, wash all bedding, clothing, and personal items in hot water (≥ 60 °C) or seal them in airtight bags for two weeks to prevent re‑infestation. If symptoms persist after two treatment cycles, consult a healthcare professional for prescription‑strength options.