The left turn signal was blinking really quickly. I replaced the burned out bulb and it is still blinking really quickly. The right turn signal works as it should

Any suggestions on what I should be doing to remedy this problem.

 

Do both the front and light bulbs blink?

 

Yes, the right works as it should

The left blinks very quickly and the light stays on (on the dash board)

 

are both rear lights working?