One of the things I discovered about my body in high school was that nerves lead to canker sores. With rainblocks releasing soon, I have found a my brain going into hyper-action and, hi! Canker sores. They are a constant reminder of how much one uses their mouth for pretty much everything. Plus, the mouth is kind of just there all day. You do have to live with it. I have tried a lot of different remedies and stuff but time is the one standard healer. Bit of a pain, but not much else to be done.