Hi...older guy. Have had cold sores for many years. Same for the wife. I noticed a small non blister lesion on the shaft of my penis. This never blistered that I am aware of but was aprox the size of a cold sore I get on my lip now and then. From when I noticed it to pretty much healed was 3 days. No pain at all, no swelling, no tenderness,no symptoms at all but what looked like a lesion. We had oral sex aprox 3 weeks prior but did not notice any cold sore activity at the time. Am I over reacting to be worried? 3 days seems awful fast for something to heal over. Thoughts?