Will a canker sore spread cold sore virus?

Hey, first to answer your question. No, canker sores and cold sores are different and you won't spread the same virus at all. Secondly, I also get gold sores and have since I can remember, I suggest taking 3 grams of L-Lysine on a full stomach as soon as you experience symptoms along with a topical cream like abreva. It'll be gone in a day or two.