Toothpaste Eased Cat Allergy

Q. I want to thank you for a recent tip on using Crest Sensitivity toothpaste to help with allergies. My daughter always needs to use her inhaler frequently when she comes home from college, due to cat allergies. This past weekend, she didn’t need the inhaler one single time. She started using the toothpaste two weeks ago.
A. Thanks for sharing her experience. A caller on our radio show told us that Crest Sensitivity Toothpaste had helped his asthma. We found this fascinating but surprising. The active ingredient is potassium nitrate, a compound that was used to treat asthma and arthritis a century ago. Although it is unlikely there is enough in toothpaste to have a pharmacological effect, your daughter is not the only one to report benefit.