Just discovered DD has nits. I am presuming so as I found lots of little dirty bits in her hair, and the odd crawly thing! DH gone to chemist for shampoo and nit comb. Do we all need to be done? IF so, how long does it take as I have a Drs appt at 10:30am, then straight to work and not home again until 9:30pm tonight. DH will do himself and DD, but do we need doing NOW? Also, how many times will it take to kill the fuckers little buggers?