Haven't found an answer to my issue. Do I need an appliance or braces for my dental issue? (Photo)

As you can see in the pictures, there's some protrusion going on with my teeth, more on the left side of my face which makes one nostril appear smaller than the other and the cheekbone on that side is also a bit more prominent than the other. How can I fix the protrusion on the left side of my mouth and the protrusion altogether? I can't seem to find a solution.