after suffering many years of this and trying every treatment on the market,I have come to the conclusion that combing with the nitty gritty comb and planty of conditioner is the best solution,I comb evey other night until no more come out and then do once a week just to check if reinfection has occured,but it is a slow and laborious process and I think I remember reading that it can take three weeks to get rid of them,good luck.
yeah i did everyone, then a second lot a week later.
i am generally a bit of an organic freak too, but tbh i just wanted the little buggers gone! it worked brilliantly, though i guess if the children were getting nits frequently i would maybe not be so happy about keep on using it
My dd also has waist-length hair (not curly, but incredibly fine and tangly) and had to be combed because ds1 had nits. At the time he had shoulder-length hair, incredibly thick.
The best technique I have found for dd is to brush her hair and part it into four or six sections, plait each section, and then wet, condition and comb the sections one at a time, replaiting loosely wehn finished. Then it all has to be undone for the final rinse. You do risk missing the partings, but you can comb each parting when you undo the hair.
With ds1 I would wet and condition his hair, and use two of those fat grips like overgrown clothespegs with teeth. One to hold the next uncombed section out of the way, and the other to hold combed hair out of the way.
You don't need to comb every night. With 3 dcs I comb one each night, and dh and I would comb each other once a week. After the first week or two, I only combed ds1 (the one with nits) every 3 nights, and dd and ds2 once a week or so, just to make sure they hadn't caught nits from him.