K.S.
Potty treats are what finally did it for us. He never gets candt except in rare situations. So I started offering a single Rolo if he used the bathroom. After a couple days I stopped reminding, he would use the potty on his own and come tell me so he could have a treat. Once he was back in habit and experiencing success again, he stopped asking for a treat each time. He asked less and less over the next 2 months and then just stopped asking. Not the method I normally would choose but when you are desperate ;-)