blowing side light Fuses

[thelad]

Hello i have a fault with blowing side light Fuses, have replaced the 5am side light fuses but now i have the brake lights stuck on when the side lights are on, turn the side lights off and the brake lights work fine, after about 20 presses of the brake pedal it blows the fuses for the side lights, i have changed the brake/side light bulb on each side but still the same.

have also unplugged the brake light switch but the brake lights still stay on.

any ideas? the other night it started working on then just buggered up again.

thanks in advance.