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Doctor insights on: Nix

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Dr. L. Collins
76 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. L. Collins
76 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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Nix (Tip)

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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What is the definition or description of: Nix allergy?

What is the definition or description of: Nix allergy?

Nix allergy: NIx ( permethrin topical) is used for treatment of lice. An allergy occurs when your body’s immune system creates antibodies to a foreign substance causing a reaction that can be mild to severe. For possible adverse reactions see: https://www.drugs.com/sfx/nix-side-effects.html ...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

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Does nix (permethrin) over-the-counter treatment help get rid of bed bugs?

Does nix (permethrin) over-the-counter treatment help get rid of bed bugs?

No: Pyrethrins (active ingredient in nix) are designed to paralyze insects. They do not last long so have very little long term effect. Additionally many bed bugs have become resistant.: http://evolution.Berkeley.Edu/evolibrary/news/100901_bedbugs products which contain pyrethrins can damage furniture too. ...Read more

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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...

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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I bought some Nix (permethrin) Cream Rinse with 1% Permethrin. How long do I need to keep it on my skin to treat scabies? Or is it strong enough to kill them?

I bought some Nix (permethrin) Cream Rinse with 1% Permethrin. How long do I need to keep it on my skin to treat scabies? Or is it strong enough to kill them?

Scabies treamtment: the recommended treat for scabies is 5% pernethrin in a cream form for 12hour, The cream rinse would not be enough, also worry about exposure to the solvant . I will not use it, also make sure diagnosis is correct . ...Read more

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Can i keep nix (permethrin) lice treatment on overnight?

Can i keep nix (permethrin) lice treatment on overnight?

No: The manufacturer recommends to leave it on the patient's hair for 10 minutes. Most importantly, this is an insecticide that paralyze the lice, thus what you want is to grab the fine comb and do an extensive combing as indicated in the instructions, so the patient does not shed the lice all over. Keep in mind that there is resistance to this type of drugs, thus follow up with pcp is important. ...Read more

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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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Does nix (permethrin) lice lotion kill scabies?

Not a good choice: Nonprescription nix (permethrin 1%) is used to treat lice but is not strong enough to cure scabies. Prescription Permethrin 5%(elimite) cream is the most common medication to treat scabies and it works well. Lindane is mentioned in the above answer- it is rarely used now and carries a boxed warning because it has caused seizures and death in some age groups and low weight individuals. ...Read more

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Used Nix (permethrin) lice spray on couch and chair.So nervous it is going to cause cancer in my toddler is the risk really bad?Used it in August. Im panicked.

Used Nix (permethrin) lice spray on couch and chair.So nervous it is going to cause cancer in my toddler is the risk really bad?Used it in August. Im panicked.

No Do not worry: Chemicals like this do not cause cancer that easily. First of all anything that carries much risk for Cancer will not be available for use. Further, it takes many years of repeated use and exposure before Cancer can be created. Our bodies are very efficient in cleaning up any chemicals that enter our body. Even if some cell damage is done , the body can repair it quite efficiently. ...Read more

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Dr. Noah Scheinfeld
165 doctors shared insights

Permethrin (Definition)

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