How Lice Infestations Medications Work

Lice infestations are caused by the parasite Pediculus humanus capitis, which attaches itself to human hair shafts and feeds on human blood. To treat lice infestations, topical insecticides are applied directly to the scalp or hair.

Gold Standard Medication: Permethrin Cream Rinse

The gold standard medication for treating lice infestations is permethrin cream rinse, a topical insecticide that works by:

• Killing lice and nits (eggs) on contact
• Preventing re-infestation by killing any remaining lice or nits

Alternative Medications: Ivermectin Lotion and Malathion Lotion

Other topical insecticides, such as ivermectin lotion and malathion lotion, can also be used to treat lice infestations. These medications work similarly to permethrin cream rinse by killing lice and nits on contact.

• Ivermectin lotion is a topical insecticide that works by paralyzing the lice, causing them to die within 2 days
• Malathion lotion is a topical insecticide that works by killing lice and nits on contact

Importance of Treatment and Prevention

Treatment with topical insecticides is essential for eliminating lice infestations. It's also important to take preventive measures, such as:

• Washing and drying clothing, bedding, and towels in hot water
• Using a fine-tooth comb or nit comb to remove nits from hair shafts
• Avoiding sharing personal items that come into contact with the scalp or hair