Die off can come and go. It is interesting that you are killing lots of bugs with Paragon as quite a few people I have seen didn't think it was effective.
I don't know about Pargone, but I think that with most paracides there is no "down time." If you stop you just give the bugs a chance to recoup and repopulate. In fact, I personally do ongoing maintenance every single day of my life.
If the die off is too intenses, then I would personally take smaller doses for awhile, but as long as I was functional I would not stop altogether.
Paranoid thought - ? If you don't kill them mercilessly w/o let up, then maybe you will need some more Paragone later to get rid of those that have had time to reproduce?