within a week if they are not kept at the same temperature as that found close to the human scalp. Spending much time and money on housecleaning activities is not necessary to avoid reinfestation by lice or nits that may have fallen off the head or crawled onto furniture or clothing. Do not use fumigant sprays; they can be toxic if inhaled or absorbed through the skin.
Treatment Medication Brand Name Notes Benzyl Alcohol lotion, 5% Ulesfia Lotion Use for head lice. Works on body lice. Not ovicidal. Retreat in 7 days. Not for under 6 months. Safety in over 60 not known. Ivermectin lotion, o.5% Sklice For over 6 months age. Not ovicidal but prevents nymph survival. Retreat only after discussing with health care provider. * see note in notes section of this slide Malathion lotion, 0.5% Ovide Pediculicidal and partially ovicidal. Retreat in 7-9 days. Not for use under age 6y. FLAMMABLE Spinosad Topical Suspension, 0.9% Natroba Kills lice and eggs. Age 6 months or more. Retreat only if lice are seen at 7 days. Lindane Shampoo, 1% None Second line Rx only. Not for use in children, elderly or if less than110lbs. ** see notes below
Pubic Lice-- Pthirus pubis Insect that is an obligate ectoparasite of humans feeding exclusively on blood. Can live in areas of coarse hair other than pubic hair. (ex. Eyelashes,mustache/beard, legs. On head are usually Head Lice). Have three forms or stages– Nits: egg stage, oval and yellow to white. Take appx. 6-10 days to hatch. Nymph: immature louse that hatches from egg. Looks like adult but smaller. Take 2-3 weeks to grow into adults that can reproduce. Must feed on blood. Adult: resembles a miniature crab. 6 legs with two large front legs. Tan to greyish-white. Female larger than males. Must feed on blood. Die in 1-2 days if off host. Not spread by animals.
Pubic Lice Infestations are found worldwide and have no racial or socioeconomic preponderance. Usually spread through sexual contact and more common in adults. (Note: Pubic Lice on head / eyelashes of children may be signs of sexual abuse). Occ. Spread by close personal non-sexual contact or by clothing, bed linens or towels. Do not transmit disease can have secondary infection of the bites. Can cause a dermatitis. Persons with pubic lice should be evaluated for other STDs.
Pubic Lice Diagnosis: Must find louse or eggs in hair of pubic region or less commonly elsewhere. Treatment: Typically 1% permethrin . Malathion 0.5% (Ovide) can kill lice and some eggs but is not currently approved for pubic lice. See table of Rx for head lice.
Pubic Lice—Treatment (non- medication) 1. Wash the infested area; towel dry. 2. Carefully follow the instructions in the package or on the label. Thoroughly saturate the pubic hair and other infested areas with lice medication. Leave medication on hair for the time recommended in the instructions. After waiting the recommended time, remove the medication by following carefully the instructions on the label or in the box.
You've reached the end of your free preview.
Want to read all 254 pages?
- Fall '19
- Head louse, Pediculosis, Body louse, permethrin, babesiosis