My brother has been diagnosed with herpes on lips. He is having this herpez simplex infection on his both lips. He was complaining of tingling and irritation around his mouth. He is an active smoker that I know and want people also to know. The herpes infection has taken the shape of an ugly sore which is hurting him. I want to know the cause of herpes on lips and also its treatment? Is this due to his smoking habit?
