What should you do if you get lice? - briefly
Apply an FDA‑approved lice treatment, meticulously comb out all nits, wash clothing and bedding in hot water, and inform anyone who may have been exposed.
What should you do if you get lice? - in detail
If live insects are found in the hair, begin treatment immediately to prevent spreading. First, confirm the infestation by using a fine‑toothed lice comb on wet, conditioned hair; examine the comb for adult lice or viable nits attached within ¼ inch of the scalp.
Next, select an approved pediculicide. Over‑the‑counter options contain permethrin 1 % or pyrethrin plus piperonyl butoxide; prescription products may include malathion 0.5 % or ivermectin 0.5 % lotion. Follow the label precisely: apply to dry hair, saturate the scalp and shafts, leave for the recommended duration, then rinse thoroughly.
After the first application, repeat the treatment after 7–10 days to eliminate any newly hatched nits that survived the initial dose. During the interval, remove all visible eggs with a fine comb at least once daily.
Simultaneously, cleanse personal items. Wash clothing, bedding, and towels used within the previous 48 hours in hot water (≥130 °F/54 °C) and tumble‑dry on high heat. Seal non‑washable items in a sealed plastic bag for two weeks. Vacuum carpets, upholstered furniture, and car seats to capture stray insects.
Inform close contacts—family members, classmates, or coworkers—so they can inspect their own hair and begin preventive measures if needed. Advise them to avoid sharing combs, hats, headphones, or other headgear until the problem is resolved.
If symptoms persist after two treatment cycles, consult a healthcare professional. Resistance to common agents may require alternative medication or a combined approach, such as a prescription lotion followed by a mechanical removal regimen.
Document the dates of each treatment and combing session. Maintaining a clear record helps track progress and provides evidence if further medical advice is required.