Can Mouthwash Cause Toothache?

December 13, 2025

Mouthwash is a common part of many oral hygiene routines, but some patients wonder if it can cause toothache. The answer is yes, under certain circumstances. While mouthwash itself is not harmful, improper use or specific ingredients may trigger discomfort.


Alcohol-based mouthwashes can sometimes irritate sensitive teeth or gums, leading to a burning sensation or temporary pain. Overuse may also dry out the mouth, reducing saliva flow and increasing tooth sensitivity. Additionally, if you already have cavities, exposed dentin, or gum recession, strong mouthwash formulas can heighten discomfort.


It’s important to choose a mouthwash that matches your dental needs. For children, seniors, or individuals with sensitive teeth, alcohol-free or fluoride-based options are often recommended. Dentists and dental assistants also advise using mouthwash as a complement to brushing and flossing, not a replacement.

If you experience toothache after using mouthwash, stop immediately and consult your dentist. Persistent pain may signal an underlying issue that requires professional care.


At Schwimmer Dental, we help patients find safe, effective oral care solutions in Point Pleasant Beach, NJ.



Let us guide you toward a healthier, pain-free smile. Contact us today!


SOURCE:


https://www.listerine-me.com/mouth-coach/types-of-mouthwash-and-their-uses


https://www.ada.org/resources/ada-library/oral-health-topics/mouthrinse-mouthwash


https://www.colgate.com/en-ph/oral-health/selecting-dental-products/antiseptic-vs-antibacterial-mouthwash-whats-the-difference


https://pmc.ncbi.nlm.nih.gov/articles/PMC10690539/


https://www.nhs.uk/live-well/healthy-teeth-and-gums/how-to-keep-your-teeth-clean/

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