I have always gotten cold sores on my lips at least 3 times a year since I can remember. About two weeks ago I had oral sex w/ a man. It probably lasted less than a minute. For the last week my lips felt really chapped and burned. Now I have a breakout of blisters on my lips. I think I have had this condition before, but I am not sure. Could this be herpes? Like I said, I have gotten cold sores before. If you think it's herpes, do you think it's the same type that I used to get before, or could it be caused by the contact I had weeks ago. Thanks.