What should be done if lice appear in the house? - briefly
Immediately isolate the infested area, wash all bedding and clothing in hot water, vacuum carpets, and apply an appropriate lice treatment to affected individuals. Repeat cleaning and treatment after seven days to eradicate any newly hatched insects.
What should be done if lice appear in the house? - in detail
When lice are discovered in a residence, immediate action is required to eliminate the infestation and prevent recurrence.
First, identify all affected individuals. Examine hair and scalp of each person, focusing on the nape of the neck and behind the ears. Use a fine-toothed comb on wet hair to capture insects and eggs.
Second, treat the infested persons. Apply an approved pediculicide according to the product label, typically a single application followed by a repeat after seven to ten days to target newly hatched nits. For those who cannot use chemical treatments, employ a thorough combing regimen with a lice comb, repeating every two to three days for two weeks.
Third, decontaminate personal items. Wash clothing, bedding, and towels used within the previous 48 hours in hot water (≥ 130 °F/54 °C) and dry on high heat. Items that cannot be laundered should be sealed in a plastic bag for two weeks or exposed to a freezer at –4 °F (–20 °C) for at least 24 hours.
Fourth, clean the environment. Vacuum carpets, upholstery, and vehicle seats. Discard or wash vacuum bags and filters. Wipe surfaces with a disinfectant that is safe for household use.
Fifth, implement preventive measures. Encourage regular head checks, especially after school or group activities. Limit sharing of hats, hair accessories, and bedding. Educate household members about the life cycle of lice to recognize early signs.
Finally, monitor the situation. Conduct weekly inspections for at least four weeks. If live insects persist after two treatment cycles, consult a medical professional for alternative therapies.