Fuse Luz Luv 2.8 Turbo Diesel

Ccompañeros is super short of the problem that I give.
I have a Chevrolet Luv 2.8 Turbo Diesel Year 2003, which approximately almost 3 weeks ago the fuse of the main lights was burned, which immediately replaced.
Now the same problem happened recently. He burn the same fuse.
Any suggestion that the problem can be treated ???
The last works I did were:
I changed the plug and the front focus, nothing more.
Greetings

You will have to check if somewhere the cables are cut so that the fuse is, the other is to check whether the fuse in the riflera has good or bad contact since this also burns them because of the mere fact of becoming a bad contact, there is not much more since the telecoming does not affect the burning but if you want to try a new wiring like this for I do not more so that you discard the wiring,