I'm going to talk about something now, that's a shushed up and fairly unpleasant subject. Distinctly unglamorous.
Cold sores.
They're not nice to look at and quite frankly they're not nice to have.
They hurt.
And the virus which causes them is indiscriminate in who it decides to live with. Worse? They are a form of the herpes virus, and that's a horrible thing to acknowledge. The NHS website describes them as, "Cold sores are small blisters that develop on the lips or around the mouth. They are caused by the herpes simplex virus and usually clear up without treatment within 7-10 days.