Plus, if you ingested something that burned going down and you force yourself to vomit, it will burn on the way back up too.

另外，如果你吞下的东西有灼热感，那在你强迫自己呕吐时，这种灼热感会重复。

youdao

The problem with lighting a fire under yourself (or having it lit for you) is that eventually your backside gets burned.

FORBES: How the Most Successful People Motivate Themselves (And Stay Motivated)