Has anyone here had something cauterised? What was it like?

I need part of my nose cauterised due to an old injury that’s been making my nose bleed everyday for the last 2 months, but I’m scared since I’ve heard that it can be really painful and effect your sense of smell & taste for weeks afterwards? If you’ve had it done, what was it like?
Has anyone here had something cauterised? What was it like?
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