Yes I had the same results last year with albendazole that you did-I assume my and "our" immune system wasnt strong enough to finish the job. I did have a course of albendazole after the teeth were pulled I also stopped drinking three pots of coffee a day and cleaned up my diet-less junk more veggies. My guess-I havent measured-is that my body is less acid.
I would suggest to anyone that they do it all and include anything else that would be a plus to your health. This must be an immune system issue as a cause. What could cause the immune system to have this weakness-could it be hidden dental infections-lyme-cpn or other issues-sure.
PS I am not cured yet-70% is better but like you I am concered that it will all come back. For now I will continue to do anything that stregthens my immune system and pray.