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Doctor insights on: Nix

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Dr. Stephen Scholand
75 doctors shared insights

Nix (Overview)

Nix is a topical anti-parasite agent which is a kind of skin-related medication.


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How effective is nix (permethrin)?

How effective is nix (permethrin)?

Not always: Some sarcoptes scabiei (mite causing scabies) became resistant to nix (permethrin) and requires lindane treatment. ...Read more

Dr. Stephen Scholand
75 doctors shared insights

Nix (Overview)

Nix is a topical anti-parasite agent which is a kind of skin-related medication.


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My head has been itchy for a few weeks...been checked 3 times for head lice...none found, also used NIX (permethrin) just to be sure...still itchy...

My head has been itchy for a few weeks...been checked 3 times for head lice...none found, also used NIX (permethrin) just to be sure...still itchy...

Dermatitis.: THis could be dermatitis or sensitive scalp too. Since you have trued Nix, (permethrin) lice would be unlikely but should be assessed. Any recent shampoo change may contribute. Dandruff/ seborrhea can cause itching. Should be seen if persists. ...Read more

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Treating Scabies (Tip)

Treating Scabies

Do use permethrin cream as directed. Don't forget to wash all clothes and sheets in hot, hot water. ...See more

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How regularly can you use permethrin cream without experiencing side effects?

An Insecticide: The use of Permethrin is specifically to treat infestation with mites (mostly scabies). The persistent use of this medicine is not recommended because it is meant to kill the insects. As with any other insecticides, using it persistently would not be advisable. ...Read more

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How long does it take after nix, (permethrin) to get rid of head lice in a child?

How long does it take after nix, (permethrin) to get rid of head lice in a child?

Nix (permethrin) is not...: ...My favorite treatment, as many strains of head lice are now resistant to it. Elimite cream (applied to dry hair & left on overnight under shower cap) works better, although not officially approved for that indication. Malathion (ovide lotion) works fastest, but stinks, and is flammable! kwell shampoo also works fast (repeat in 1 week), but like nix, (permethrin) resistance is common. ...Read more

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How effective is nix (permethrin)?

Not always: Some sarcoptes scabiei (mite causing scabies) became resistant to nix (permethrin) and requires lindane treatment. ...Read more

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Could I have HIV from using someone elses nix (permethrin) pencil?

Could I have HIV from using someone elses nix (permethrin) pencil?

HIV transmission: HIV is spread only by blood and certain other body fluids, including semen and vaginal fluid. It is not spread by casual contact and it would not be spread by using a Nix (permethrin) styptic pencil as HIV is not spread by contact with environmental surfaces that are not grossly contaminated with the fluid vehicle. ...Read more

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Small dark bugs keep appearing in my hair. I used NIX (permethrin) to no avail. 3 months now. Itches!!!

Small dark bugs keep appearing in my hair. I used NIX (permethrin) to no avail.  3 months now. Itches!!!

Hair bugs: There is resistance to over the counter medicine for lice so see a physician for prescription medication ...Read more

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I have only found nits on my child's head and treated her once with nix, (permethrin) do I need to re-treat next week?

Treat twice: It is recommended particularly with nix (permethrin) to repeat the treatment one week later. The most important part of treatment however is " nit picking" ...Read more

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Hi - I m pretty sure I have lice, but my apartment also has fleas. Will Nix (1% permethrin) kill both these pests?

Hi - I m pretty sure I have lice, but my apartment also has fleas. Will Nix (1% permethrin) kill both these pests?

Yes and maybe no...: Sorry for the confusing answer. Permethrin may indeed kill both, but also many of these pests are now resistant to that drug. In some areas of the US as much as 50% of luce are resistant to Permethrin. If you're having problems with recurring infestations, talk to your doc about other options for treatment in your area of the country. Also, remember environmental controls to prevent recurrences ...Read more

Dr. Noah Scheinfeld
158 doctors shared insights

Permethrin (Definition)

Permethrin is a topical anti-parasite agent which is a ...Read more