S.H.
My husband gets them all of the time, and he's come up with his own special remedy. He scratches the tops off of them (or pops them depending on how big they are), then holds a swab with rubbing alcohol on them for a few minutes. He says it's really painful, but the cold sores disappear a lot faster this way. Thought I would throw this out, I know it's not for everyone. Good luck!