Handling dog aggression in the right way is very important! A stupid and obvious statement you might think but many people do not handle themselves in the right way when their dogs display aggressive behavior.
So take a step back and have a look at your reaction to your dogs behavior.
If you are dealing with your dogs aggressiona and diplaying any of the above traits or any other negative traits for that matter then you could be making matters worse and escalating your dogs aggressive behavior.
You have to take control of the situation, own it and address it in a cool, calm and efficient manner. You also need to take advice from a dog training manual or from a trainer alongside a dog training manual to ensure that you are using the right positive reinforcement methods.