Well, the main idea is getting the underside of the leaf cleaned off/coated/whatever, that's were the mites live and reproduce. And they reproduce fast. The most natural way is just water to drown/piss them off. Most will drown if done right. But you'll have to mist them daily until they're taken care of(a setting between a single jet and mist would be best, or lightly with a single jet, or drench them with mist).
Use whatever you got around your house.
If it's a small area try a cotton swab & any of the mixtures. Remember, underneath the leaves!