If you're passing worms still, as you say, then whatever you are doing IS working.
I know it's tiring, but keep with it. It sounds like you're on the road to healing.
One tip: do not tell your work, your husband, everyone around you, about your parasites and passing them, and the itching etc. Most people will not understand, and think you're bat-shit crazy. They will lose sympathy very fast. Believe me, they don't want to hear about it. We're all in the same boat here.