Christmas Cactus- what to do about white fuzz on the stems?

My beautiful Christmas Cactus is about 10 years old, big , full, hearty and mostly healthy.
Periodically I get white fuzz on the stems. I've read to spray it with an amount of peroxide to water. It does go away for a while but seems to come back. Does anyone have a suggestion to rid my plant permanently, of this ? I'd hate to loose this beauty.
Thank you in advance.
q christmas cactus
  11 answers
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