Toothpaste ingredient causes cold sores

DEAR DR. GOTT: Thanks for your daily column and the many interesting cases you are kind enough to take your time to explain. I have to write you about my experience with cold sores in response to the reader who suffers from them.

I, too, had them for years, and nothing I put on prevented them. The sores always took up to 10 days to heal, and I would immediately get another one. My husband is a retired dentist who suggested not using toothpaste that contains sodium lauryl sulfate. CVS brand and Sensodyne ProNamel are two products free of the inactive ingredient. Since making the change, I have not had any more pesky sores. I hope this helps someone else.
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