These are the solutions I've personally tried..
Alcohol/Water solution
Soap/Water solution
Ortho Max Plant/Flower/Vegtable safe solution
Pyrethrum PR 1800 fogger
All of the methods I have tried killed the mature mites, but not the eggs.. I used the fogger lastnight expecting spectacular results, I checked this morning an the fuckers were still alive, so I assume the eggs are also. I ordered some Lady Bugs and some Neem Oil, I've also been misting my plants regularly since mites only enjoy dry climates, hopefully I can drown or scare some of them off this way, but they are really starting to destroy my plants, luckily they are only week 3 of flowering. Hopefully you have better luck gettin rid of yours!