How can i get rid of a canker sore on my tongue?

This is funny because I recently just looked up a lot about canker sores, wondering why I get them so much. The thing I use the most for when I have canker sores is.... KANKA its this oral numbing liquid sold at almost every pharmacy, made just for canker sores. It helps A LOT and makes it less annoying. Another thing I just researched is about the toothpaste that most people use. There is a chemical in it called Sodium Lauryl Sulfate. This apparently is known for causing canker sores and irritating them while brusing your teeth (making them feel even worse ad BURN). Anyways, there are some SLS free toothpastes out there that you should try. I just recently bough Burts Bees natural toothpaste. it was a little on the pricey side but it definitely doesn't burn my canker sore anymore when I brush. So, I hope this all helped you, but for now, I would really recommend the KANKA numbing stuff, it has always worked really well for me.