Be patient til improvement;don't share comb&clothe
I understand your frustration and disgust you have while still finding head lice
However, you should have patience, as head lice can be repeated as happened in your case.
This means that the nix-treatment you had was not effective enough to kill all head lice or the hygienic measures you took were not sufficient to kill the lice.
If the second treatment you had would not show efficacy within the next week, then, I suggest to consult your physician to start prescription medicines.
Furthermore, I'd advise to:
- wash your clothing and bed shits with hot water to kill lice eggs
- keep everything clean in your house
- although both of you (together with your husband) are being infected, I'd suggest not to share the comb or other clothings to avoid re-infestation until both of you are fully recovered.
Hope the second treatment will be successful for both of you!
Feel free to ask me other questions you might have!