How can I make the wound on my tongue heal quicker?

I think I may have a canker sore/cold sore at the side of my tongue. I got it the day before yesterday while eating airhead extremes. It hurts when I gulp and when talking,eating and drinking. My mom recommended I gargle warm water mixed with salt and vinegar (which I did once last night after brushing my teeth). If doing that,will quicken the healing process,how many times per day should I do so? And when? What else can I do to quicken the healing process?