If your gonna use a spray like "End all" you have to make sure you spray the plant from the bottom of the leaf up, coating the front of the leaf does nothing... you must then repeat process 4 or 5 days after because the first spray kills the initial mites on your plant however thousands of new eggs have already been laid before the parents die leaving them to hatch in 4 days. If this still doesnt work you could get a stronger spray but "Avid" which is not available over the counter and is also toxic to your health so make sure you wear a toxic mask. Another way if you happen to have a Co2 burner is to turn the C02 level way up to about 10.000 ppm for only about 1 hour and they should all soffocate. Make sure you are not in the room during this as the level of C02 at this rate is also harmful to your health