Worried about the cost of cosmetic procedures abroad, how are you planning to go about it?

Hi everyone, I'm Tien from Vietnam. I'm thinking about flying to Korea for a minor cosmetic procedure, but I'm very worried about the budget. Besides the cost of the procedure itself, I also need to factor in airfare, hotel, food, etc., and I'm not sure how much it will all cost. Can you tell me how long it usually takes from check-in at the clinic until I can fly back? I'm considering staying for 5 or 7 days.

I also don't know how much money I should set aside for emergencies or follow-up if needed. Have any of you had experience planning this trip? Where should I start to calculate the overall cost reasonably? I'd be very happy to hear your advice on how to plan your finances for this trip.