s are sometimes confused with Cold sore
s, but the two are not related. Cold sore
s are caused by the Herpes Simplex 1 and 2 (HSV-1 and HSV-2) viruses (Herpesviridae). While nothing direct, there is a relationship between higher HSV-6 titers in the CSF of MS patients than non-MS controls, and there appears to be a higher titer of HSV-6 in people who report less of activity of HSV-1.
I know none of this has to do with "canker sore