Blinkers not working

Every time I go for a short drive, turn the truck off, and then get back in to drive again, my blinkers wont work. The only way to fix this for a short time is by popping the hood and pulling the fuse, waiting about 10 seconds and then putting it back in. That only works until the truck is shut off again. I have replaced the fuse to see if that was the porblem but it wasnt blown each time i did it. Could it be the flasher? Has anyone else had this problem? I need help.

 

Yup...I'd get that relay looked at.

 

It's been doing this for awhile now. Usually it's not that bad and the blinkers work fine but it's been pretty bad lately. I'm just trying to figure out what for sure it is so I'm not just throwing money into something that might not fix the problem.