After enduring a horrible flu-like cold over the weekend (it was so bad I was restricted to my apartment all weekend), I found that it had caused an ulcer in my mouth. It decided to conveniently 'pop up' underneath my lower lip on the inside of mouth - a seriously annoying spot where it constantly rubs against my teeth.
I've decided to try out minty tasting throat gargle since I hate the taste of tepid salt water. It makes me viciously thirsty.