Dude, don't be alarmed, cold sores, fever blisters, herpes....one in the same. Some people are susectible to the virus and have mouth sores, some not. This is totally different that the herpes you have (private area). But, in the same family. If this makes sense. I have had them for years, but found that Abreva (although expensive) does shorten the healing time. Also taking L-Lysine tablets when the first sign of one apprears. You can have a Dr. or dentist in my case, prescribe a medication to really get it gone. You take this when oyu first notcie one coming up. I find I get them when out in the sun or stressed. Hope this helps!