How to treat lice on eyelashes? - briefly
Apply a topical pediculicide such as 1% permethrin or a petroleum‑jelly base containing the medication to the affected lashes, leave for 10‑15 minutes, then gently wipe away with a clean cotton swab; repeat the treatment for 7 days. Maintain eyelid hygiene and avoid re‑exposure by laundering bedding and personal items in hot water.
How to treat lice on eyelashes? - in detail
Eyelash lice, medically known as phthiriasis palpebrarum, require prompt and precise management to prevent ocular irritation and secondary infection.
Initial assessment should confirm the presence of live nits adhered to the base of the lashes and adult insects moving among the hairs. Visual inspection with magnification, often aided by a slit‑lamp, distinguishes true infestations from debris or crusts.
The primary therapeutic approach combines mechanical removal and pharmacologic agents:
- Manual extraction – Use fine, sterile tweezers or a disposable lash comb to pull each louse and its attached egg. Perform the procedure under a bright light, cleaning the tool with alcohol between each removal to avoid cross‑contamination.
- Topical pediculicides – Apply a single dose of 1 % permethrin cream or 0.5 % malathion solution directly onto the eyelid margin, avoiding contact with the cornea. Follow the manufacturer’s instructions for exposure time, typically 10–15 minutes, then irrigate thoroughly with sterile saline.
- Ivermectin – For resistant cases, a 0.5 % ivermectin ophthalmic suspension can be administered twice daily for three days. Prescription is required; monitor for local irritation.
- Petroleum‑based ointments – A thin layer of petroleum jelly applied to the lashes suffocates the parasites. Leave in place for 8–12 hours, then remove with warm water and repeat for three consecutive days.
Adjunctive measures enhance treatment success:
- Hygiene – Wash hands before and after any manipulation. Launder bedding, towels, and clothing in hot water (≥60 °C) and dry on high heat.
- Eye care – Use preservative‑free artificial tears to alleviate dryness caused by topical agents. Avoid makeup and contact lenses until the infestation resolves.
- Follow‑up – Re‑examine the eyelids 48 hours after the initial regimen. Persistent nits warrant a second course of the chosen pediculicide or a switch to an alternative agent.
Special considerations include avoiding ointments that contain preservatives or alcohol near the ocular surface, and contraindicating systemic ivermectin in pregnant or lactating individuals. Prompt eradication reduces the risk of conjunctival inflammation, secondary bacterial infection, and transmission to close contacts.
Comprehensive management integrates careful removal, appropriate medication, strict sanitation, and diligent monitoring to achieve complete clearance of eyelash lice.