I have had canker sores all my life, now 52. Average size for me is about the size of your little finger nail. The pain goes through my jaw and makes my teeth feel like they are too big for my mouth. I have learned that when a sore is on the bottom of my mouth it hurts worse than one the top. My dentist told me there are more nerves on the bottom due to the extra muscles, connective tissue, and tongue. Normal life of the sore for me is about two weeks. I get temporary relief from Campho-Phenique. Put it right on the sore. It burns at first then offers numbing effects. I reduce the healing time buy rinsing with Listerine, the blue works best. This cuts about 4 days off the healing time. I used to take 4 Lysine tablets a day, 500mg each, but that caused irregular heart beats for me. I have a sore right now that started when I bit my lip three days ago. I am currently drinking hot coffee to numb it before I hit it with the salt. Sometimes the best you can do is suffer through it and let it run its course. Just keep reminding yourself there are a lot of worse things you could get.
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