Why do I keep getting canker sores?
Here’s what most dentists tell you about canker sores: use a numbing gel, avoid spicy foods, and wait it out. Here’s what they don’t tell you: A 1977 study found that zinc supplementation reduced canker sore recurrence by 50% to 100% in patients with low zinc levels. Yet somehow, decades later, most people suffering with recurrent canker sores have …
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