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. It could also temporary blind you if it comes in contact with your eyes.