What should be done if a friend has lice? - briefly
Advise your friend to apply an approved lice treatment, comb out nits with a fine-toothed lice comb, and launder clothing, bedding, and personal items in hot water. Notify close contacts to inspect themselves and repeat the treatment after 7–10 days to prevent recurrence.
What should be done if a friend has lice? - in detail
If a companion discovers a lice infestation, immediate action is required to eliminate the parasites and limit transmission.
First, confirm the presence of live insects or viable nits attached to hair shafts near the scalp. Use a fine-toothed comb on damp hair, scanning each section for moving lice or oval, white‑to‑brown eggs.
Next, select an appropriate treatment. Over‑the‑counter pediculicides containing 1 % permethrin or 0.5 % pyrethrin are effective when applied according to the package directions. For resistant cases, a prescription such as 0.5 % malathion or ivermectin lotion may be necessary. Follow the recommended exposure time, then rinse thoroughly.
After the chemical step, perform a thorough mechanical removal:
- Wash the hair with a fine‑toothed nit comb, moving from scalp outward.
- Repeat combing every 2–3 days for two weeks to catch newly hatched lice.
- Wash all personal items (combs, brushes, hats, hair accessories) in hot water (≥ 130 °F) or soak in a disinfectant solution for at least 10 minutes.
Clean the environment to prevent re‑infestation:
- Launder clothing, bedding, and towels used within the previous 48 hours in hot water and dry on high heat.
- Vacuum carpets, upholstery, and car seats; discard vacuum bags or clean canisters afterward.
- Seal non‑washable items (e.g., stuffed toys) in a sealed plastic bag for two weeks.
Inform close contacts—family members, classmates, teammates—so they can inspect their own hair and begin preventive measures if needed. Encourage the friend to avoid sharing personal items such as hats, hair ties, or headphones until the infestation is cleared.
Monitor progress. If live lice persist after two treatment cycles, consult a healthcare professional for alternative therapy or resistance testing.
Provide emotional support. Reassure the individual that lice are a common, treatable condition and that prompt, systematic action will resolve the problem quickly.