You should not drive for 48 hrs after any general anaesthetic.
After hernia surgery, you are advised to have some time off work to recover. 
I normally advise you to plan to return to work 7 -10 days after surgery.  If your job involves manual work with heavy lifting, this time may need to be extended to as long as 4 weeks.  If your job is desk based then you may be able to return slightly earlier, but this will depend upon the speed of your recovery.