Do your plants look healthy otherwise?
If you have other spaces, I would take several cuttings of each rinse well, and plant them in other locations.
If you can find or buy any predators of mealys, that's an option:
https://www.google.com/#q=pred...
To make use of rubbing alcohol, you can mix it with water and spritz onto plants with a spray/squirt bottle. Should eliminate those that get hit. Try on a test leaf and wait a day or 2 to make sure your plant(s) doesn't mind.
http://homeguides.sfgate.com/c...
