I recognize it's the tension, reason I observe the pattern. I use to ask, exactly what is canker aching vs fever blister, however I know since canker sore in mouth, for example I get canker aching on the tongue. Cold sores are on lips, and both are from stress, yet they're various infections. Anyway, the best remedy for canker aching I have actually ever made use of is Canker Sores Begone. If you wish to do away with canker aching within a day or two you ought to try it.