It really depends on what you are healing.
for example. if you have a cavity, eventually the nerves die and you dont feel the pain of it.
If the tooth is being induced to regenerate,
then wouldn’t the recovery of the nerves cause you to feel the pain of it again?
this is the logic.
at least to my understanding.
You quote antibiotics above in your example.
which kills bacteria and prevents infection,
I am sure killing the foreign bacteria wont be as painful…
well i assume so to whatever i know about it.
shrug