Planning flights and accommodation for aesthetic treatments in Korea. Is it chaotic or not?

Hello everyone, my name is Net and I'm thinking about going to South Korea for an aesthetic procedure. However, I'm currently very worried about the budget. It's not just the treatment cost, but also the flight tickets, accommodation, and daily expenses, which all add up to a significant amount.

Has anyone been there and can provide an estimate? For example, how many days would be sufficient to stay in Korea for the procedure and allow for recovery before flying back, so I can travel normally? Also, roughly how much should I budget for flights and hostels or guesthouses? Has anyone found ways to save money?

Honestly, I really want to do this, but a budget like this is discouraging. I'll be waiting for comments from those with experience. Thanks in advance!