Skip hydrogen peroxide on a pet's wound — it slows healing
The fizzing that looks like it's cleaning is actually killing healthy cells too. Fewer than five independent reports so far, so it is still unverified — try it and file one.
Why it works
Hydrogen peroxide is cytotoxic — it doesn't distinguish between bacteria and the healthy tissue trying to heal, and using it on a wound repeatedly measurably slows healing. Plain saline or clean lukewarm water flushes debris just as well without the damage.
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