Best medication to take after lip lift?

Getting medication right after a procedure is always a hassle for me, since I am alone. There's just no one to pick it up for me. So, prior to my next procedure (a lip lift in the US, I live in another country) I would like to ask what medication I can buy beforehand. Preferably in my own country/ in any drugstore without prescription. This would save me so much time and trouble afterwards. Thank you for your time!