What kind of care is needed after plastic surgery?

I have decided to have plastic surgery, and I have many questions regarding post-operative care. I am curious to know what precautions those who have actually undergone the surgery took during the recovery process and how long it took to return to their daily lives. In particular, I would like to hear about the extent of swelling and pain experienced. I would be very grateful if you could share any pre-operative preparations or essential tips you should know.