I started driving about 3 weeks after... if you have a manual car its a little bit harder but i have an auto so it was fine... but even just to start with just small trips so that you dont put yourself in any paths that an accident may occur... i know thats all good in theory but I guess just places you feel comfortable to drive
My insurance co (CGU) said that if you have a cert or letter from your doc that says you are in good enough health to drive that they will accept that in the case of an accident.
Good luck
xoxoxo