Flushing?

I got a nute burn on my plants, and I was curious after flushing them how long before I would notice a change, so I know when to stop flushing them?

I flush mine 3x the size of the pot give them a couple days to a week of just feeding plain water or maybe 1/4 nutes and watch the new growth because the old nute bunred growth will really never recover you must look at the new growth to see if you are still burning to plant or not.

Thanks, hopefully it clears up in a week. I'd hate to lose all the bud at week 5.