system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why does my nose burn when I burp through it after drinking a carbonated beverage?

Is it the actual carbonation coming back up that makes it burn? If that is the case, then why doesn't it burn when we burp through our mouth?
gpt
When you drink the soda the CO2 that is released from it reacts with the water in your throat/belly/mouth and results in carbonic acid, which you burp out. Nasal lining is also sensitive so will feel a burning sensation because of carbonic acid when it comes up.