A total of 2 reviews of this product on Reddit.
1st Mar 2018
SmartMouth Mouthwash. Pricey but effective.
22nd Sep 2019
You’ve obviously never heard of this: https://www.amazon.com/Smart-Mouth-Mouthwash-Fresh-Mint/dp/B00J7G0K9O
This removes all traces of old cigar flavor in about 2 seconds. It’s the only thing that really works. Available at most stores, walmart etc