Wanda
Have you heard about Listerene? The old fashioned yellow kind. It has been a really effective treatment in our schools. There is also a product you may get your pediatrician to prescribe. It is called Lyndane, but it is only a means of last resort. Have you sealed all stuffed animals, pillows, coats in pastic bags(21 day at least) vacuumed every inch of your bedding, sofa, car interior? Hot dryers for at least 30 minutes for anything that will fit. It is really a battle, your problem is the nits. Listerene really helps them to detach from the hair shaft. Don't waste your money on over the counter things except for the spray to disenfect your home. Good luck!