How to treat lice during pregnancy? - briefly
Safe management includes applying a permethrin 1% lotion or shampoo according to the label, repeating after seven days, and combing wet hair with a fine-toothed lice comb. Oral insecticides and heat treatments should be avoided; consult a healthcare provider before use.
How to treat lice during pregnancy? - in detail
Treating head lice during pregnancy requires methods that avoid systemic absorption of harmful chemicals while effectively eliminating the parasites.
Wet‑combing with a fine‑tooth lice comb is the safest mechanical approach. Apply a generous amount of conditioner or mineral oil to the hair, separate sections, and run the comb from scalp to tip. Repeat every 2–3 days for a week, removing live insects and attached nits.
Over‑the‑counter pediculicides containing 1 % permethrin or pyrethrins are generally regarded as safe for expectant mothers when applied according to label instructions. Use a single full‑dose application, leave the product on the scalp for the recommended time (usually 10 minutes), then rinse thoroughly. Do not exceed one treatment per infestation cycle; a second application may be needed after 7–10 days to target newly hatched lice.
Prescription options are limited. 1 % benzyl alcohol lotion is approved for use in pregnancy; apply to dry hair, massage for 10 minutes, then rinse. Avoid malathion, ivermectin, and spinosad, as safety data for fetal exposure are insufficient.
Environmental measures reduce re‑infestation risk. Wash all bedding, clothing, and towels used within the previous 48 hours in hot water (≥ 130 °F) and tumble‑dry on high heat. Seal non‑washable items in plastic bags for two weeks. Vacuum carpets, upholstered furniture, and car seats; discard vacuum bags immediately.
Inspect the scalp and hair daily for surviving nits. A repeat mechanical or chemical treatment after 7–10 days eliminates hatching lice that survived the initial session. Continue monitoring for two weeks to confirm eradication.