Well, a cold sore popped up yesterday. I usually get 1-2 per year, and they usually only last a few days. I use Lysine cream, and am currently taking L-Lysine 2 grams a day. Well this time the cold sore isn't letting up and actually got worse, which I found weird.
Did a bit of reading and turns out L-Arg is bad for cold sores, and actually competes with the same receptors as L-Lysine. I don't know much about the subject but just read a bit on google. Turns out lots of people complain of breaking out with HSV when supplementing with arginine, sucks! I never made the connection in the past. Discontinueing arginine for a bit I guess!

As far as them competing for the same receptor, doesn't that make it kind of redundant to take them both pre workout? Hopefully you can clarify austin