My leg really hurts after the surgery. Advice on a good painkiller. Thanks in advance for the advice.
I can advise you a very strong painkiller. Maybe this is what will work for you. But I recommend that you first see a doctor who can advise you. https://medicalbrandnames.com/cns-drugs/rapifen-alfentanil-hydrochloride.html you can read information about these painkillers here.
It seems to me that you should consult a doctor to prescribe a painkiller. It would be foolish to take medicine recommended by someone who never knew anything about it.