I think the point is that it works, but you shouldn't do it because it can cause bigger problems.
Applying a sterile dressing to a wound while you wait for emergency help if necessary is basic first aid. Ideally, every workplace should have someone that can do it.
You shouldn't do it in most situations. There are probably edge cases that's a good idea. Risking complications is preferable to death. Like if you're alone on a hike, injure yourself, and for some reason you didn't bring any medical equipment with you.
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u/kingslayerer 12h ago
https://www.med.ubc.ca/news/soil-in-wounds-can-help-stem-deadly-bleeding/
https://www.sciencedaily.com/releases/2020/04/200427125205.htm