The med community stopped washing any wounds with H2O2 a long time ago.
Short of it, it causes issues with the tissues and delays healing.
Soap (just good soap, not antiobiotic) and lots of clean water is the best for cleaning wounds.
An amputated and degloved leg from a crush with the rocky mountains as the anvil got 12L of washout.
Then 9L more 2 days later.
And IV antibiotics of course.
I dont use 3x antibiotic cream on cuts unless they show sign of infection.
But what do I know?

Even nasty nasty contamination.
Wash wash wash.
If its contaminated and bad enough it needs stitches, they will likely put a person on some Keflex.