the white stuff is yeast. The h2o2 kills it on contact.
you have yeast for a reason, it is a by product of mercury posioning (from your amalgam)
add come cilantro and chlorella to your diet to reduce your heavy metal load. If you like cilantro try and eat it every day. Other wise take chlorella 6-8 tablets/ day, or as much as you can tolerate. Chlorella is the perfect food and I often use it to replace snacks.