There are several treatments for head lice. If what you have tried isn't working, you may want to consider these other alternatives.
Ivermectin (Stromectol) may be effective in cases resistant to all forms of topical therapy - this can be considered if the Nix treatment isn't working.
You may also want to consider wet combing. Combing is performed with a fine toothed comb; the hair should be wet, with an added lubricant such as hair conditioner, vinegar, or olive oil. Combing is done until no lice or found in each session, with repeat sessions every three to four days for several weeks, continuing for two weeks after any session in which a large, adult louse is found.
You can discuss these options with your personal physician.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b
Bibliography:
Goldstein et al. Pediculosis. UptoDate, 2004.
Try to get yourself a natural head lice remedy, one that contains Neem Oil. The Neem tree is native to India, is known as the ‘Cure All’ tree and has been used as a natural insecticide for thousands of years. When you mix this with other natural ingredients that kill both lice and nits you have a totally safe treatment.
If you want to suffocate the live lice coat your hair in baby oil, put on a showercap and leave it on overnight. Put on a sweatband to stop the drips. This will suffocate them.
In the morning straighten your hair with hair straighteners to pop the nits. Repeat this in 7 days to catch any nits that hatch that you missed. Use mousse or hairspray every day to simulate 'dirty' hair which lice find hard to attach to.
We got hold of a book called 'Live Lice Free - The Head Lice Handbook.' This had everything we needed to know to get rid of head lice. Their remedy worked for us and killed all the nits and lice.
Hope this helps.