Thrush Buster seems to work well... if the thrush is out of control you may need something stronger...
You can *carefully* put bleach in a spray bottle and spray that on there too.
Thrush is the same as a yeast infection, and is equivelent to athlete's foot. It grows in dark damp places and feeds off of bad bacteria. To get rid of it, and live cultures should work. You really can try any human yeast infection medications, or athlete's foot creams as well.
Although expensive, you could ask your pharmacist about acidophilus (which is the live culture in yogurt) as it attacks and kills yeast. (I swear by it for humans, as a side note if you ever have any problems with yeast... I had a breast-yeast infection when I was nursing my daughter and she had thrush in her mouth. After long suffering we used acidophilus and it worked over night).
There are many products that do well on thrush, but if it is really severe I would try go-dry, or possibly the bleach.
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