Something else to consider. As whitespot tend to all fall off the fish together, somehow chatting to each other maybe chemically. They seems to hatch, grow, fall off together. Almost like silkworms for a lack of better description.
That means that you got a maximum of 3 days since your fish "looks" healthy, before the next cycle breaks out. You need to get your fish out of that tank before that 3 days are up. As each cyst can release between 200 to 1000 little parasites, the next round will be worst. Unless you are happy and or lucky and your fish already managed to build up some resistance.
From a lot of other guys before you, my feeling is that the whitespot we normally get in South Africa got a live cycle of about 11 days as cysts. Plenty of time guys said, no worries, fish are all healthy again with no trace of whitespot on them. Whatever doepa he bought at the LFS worked. I can ask them 14 days later and he will reply, if he reply, that sadly he lost a lot of fish on another breakout. Whitespot maturing from 25micron size to 250micron over 3 to 7 days. That adds another 3 days to the 11 as cyst. And you end up with dead fish from around day 14 after previous round.