povidone-iodine solution

[Bogertophis]

...Antibiotic good. Painkilling agent bad.

I think you meant to say "antiseptic good..." It's easy to confuse antibiotics & antiseptics, but they aren't the same thing.

Here's a quick link (one of many, I'm sure) explaining the differences: https://blog.safetec.com/what-is-the...and-antibiotic (I'm not promoting Safetec, I'm not at all familiar with them)