First time in Korea for medical aesthetics, how should I plan my budget and itinerary?

Hi everyone, I'm Hua, from China. I've been wanting to get some aesthetic treatments done in Korea recently, but honestly, I'm a bit overwhelmed right now and don't know how to plan the entire trip and budget. Besides the cost of the treatments themselves, I also need to factor in flights, accommodation, food... it feels like the expenses are adding up quickly, and I'm a little nervous.

I wanted to ask you all, when you first went to Korea for aesthetic treatments, how many days did you usually stay? Did you fly back right after, or did you stay for a while to recover and observe? I'm not sure how long it takes to see results after the procedure or how many days of recovery are needed. Also, for accommodation, do you usually choose hotels or guesthouses? I feel like guesthouses might be a bit cheaper, but I'm not sure about the comfort level.

Additionally, I'd love to hear from experienced sisters: how long does the whole process typically take, from consultation and booking to the procedure itself? If I want to control costs, how should I plan? Would going during the off-season be cheaper? Or are there any other aspects I haven't considered? Thanks for all your advice!