Replied By Man0fsteel (Redondo Beach, Ca, USA) on 11/07/2009
Okay, so I get canker sores every so often, esp. when I don't get enough sleep. This particular monster sore on my lower lip started when I severely bit into my lower lip TWICE on the same spot a week ago. No signs of healing. And they usually do after a week. Not this one. So someone suggested Alum. A quick search online brings me here where there is a lot of positive feedback. So I put the Alum on and like the above post, the pain is pretty intense. Tears are leaking involuntarily out of my eyes. 5 minutes go by and I rinse it off. It's now about 30 min after and the sore feels like it's twice the previous size. Totally swollen. And it's throbbing like no tomorrow. If it gets better, I'll be shocked, but I will report if it does in the morning.Replied By Alice (Shingle Springs, Ca, U.S.A.) on 11/07/2009
Smashing up a lysine (a particular amino acid) tab and making a paste with water and applying it to the sore is reported to relieve it. Totally non-toxic.