How come your blinkers and flashers dont work?

You didn't say what type of car you are having trouble with so I'll have to give you a general answer. Some cars use a flasher unit for flashers and a different one for blinkers. others use a module for both. Since it is rare for two flasher units to go out at the same time I suspect you have a module problem. You can usually obtain one at your nearest salvage yard for a lot less money than the parts store or dealer and the guys at a salvage yard are much more likely to answer any questions you may have about how to change it or where it is located.