User blog comment:ChemicalChaos GC/help/@comment-31513065-20191118053923

If you chug a cola and burp, then it will create a burning sensation in your nose. It's not pleasant, so don't chug colas anymore. Especially since just one can contains all your recommended daily sugar intake.

The reason why cola creates a burning sensation in your nose is because of the carbonic acid. It's not harmful, but it is very irritating along your sensitive nasal lining.