Are both your brake lights blowing out? If it affects only one light: it could be a bad light socket, or a pinched or frayed wire that is shorting out.
It's because you have a short current somewhere. You need to check the brake light wiring.
you bought one of those? what a weirdo
short circuit on trailer light wiring
There is a short in the circuit
It is possible that one of the bulbs is shorting out. Try replacing the brake light bulbs, if that doesn't work, troubleshoot the brake light switch.
air cond
The 1997 Pontiac brake light fuse is located in the fuse box. The brake light fuse will be labeled as the tail light fuse.
unplug the neon light and see if that stops it
its either a dead short or not properly grounded check that out
Your bulb or socket may be shorting out. Check for shorts in the system.
Your brake fuse might continue blowing in the 1995 Toyota Camry because you have a wire that is exposed and shorting out. You might also have an issue with the brake sensors.
2006 Ford Focus rear defroster keeps blowing the fuse immediately after replacement