As so as i replace the brake light fuse and...

if the socket are good and youve checked the wiring it has too be the brake light switch

brake light bulb socket on 2006 Ford Escape was shorting fuses due to moisture...try some bulb grease. Worked for awhile but then started again. Going to try replacing the sockets next. If it is the socket, there should be some discoloration around the edges due to the shorting.

Ok..........take a really good look at the connection point of your bulb socket. There must be a short in the wiring at or near that point. You can further brak down the location by having someone step on the break and you check to see if there is actually current going to the bulb socket ( without the bulb in of course) Really give it a good going over , shorts are difficult to find some times. Good luck, RC