With our three girls with long hair we have tried everything. Hyper aggressive chemicals, greener products, toys, clothing and bedding in trash bags for weeks, toys clothing and bed linen washed at 90 ° C, essential oils, mayonnaise vinegar olive oil etc. in the hair for nights, lice plastic and metal combs. Nothing really came after lice.
The comb ASSY 2000 is finally the real solution. Because he catches lice and nits. The first day we easily pass to one and a half per child. For we must not miss the slightest tuft of hair. We must comb close to the scalp and wrong way. This comb seems also damage nits. But most important is that it removes the very efficiently. So the second day we hardly find anything. Then checks every day for a week, after finding lice last or last slow. Finished!
And at the start of school, a drop of lavender oil behind each ear every day prevents new infections.