Nothing helps against lice, what should be done? - briefly
Apply an FDA‑approved pediculicide, repeat the treatment after 7–10 days, and remove all nits with a fine‑toothed comb while washing clothing and bedding in hot water. If the infestation remains, seek guidance from a healthcare professional.
Nothing helps against lice, what should be done? - in detail
When head‑lice infestations persist despite typical over‑the‑counter remedies, a systematic approach is required. Begin with accurate identification: live insects are visible to the naked eye, especially around the nape and behind the ears. Confirm the presence of nymphs and viable eggs (nits) attached to hair shafts within a ¼‑inch of the scalp.
Medical treatments
- Prescription‑strength pediculicides (e.g., 1% permethrin, 0.5% malathion) applied according to label instructions.
- Oral ivermectin for cases where topical agents fail or are contraindicated.
- Benzyl alcohol lotion (5%) as a non‑neurotoxic alternative; repeat application after 7 days to eliminate newly hatched nymphs.
Mechanical removal
- Fine‑toothed nit combs used on wet, conditioned hair.
- Comb from scalp outward, cleaning the comb after each pass.
- Perform combing sessions every 2–3 days for two weeks to capture hatching lice.
Environmental control
- Wash bedding, towels, and clothing in hot water (≥60 °C) and tumble dry on high heat.
- Seal non‑washable items in sealed plastic bags for at least 48 hours; lice cannot survive without a host beyond this period.
- Vacuum carpets, upholstered furniture, and car seats to remove stray insects and fallen nits.
Adjunct measures
- Apply dimethicone‑based products that coat lice, impairing respiration.
- Avoid hair sprays, gels, or oily substances before treatment, as they can hinder pediculicide penetration.
- Refrain from sharing personal items (combs, hats, headphones) until the infestation is cleared.
Follow‑up
- Re‑inspect the scalp 7–10 days after the initial treatment.
- Conduct a second application of the chosen pediculicide if live lice remain.
- Document any adverse reactions; discontinue the product and seek medical advice if irritation intensifies.
By combining pharmacological agents, diligent combing, and rigorous decontamination of personal items, the infestation can be eradicated even when initial attempts appear ineffective. Continuous monitoring ensures that re‑infestation is detected early and addressed promptly.