Cold sores/fever blisters/herpes: This is a virus that runs in my family vertically and horizontially. Stress most often triggers an outbreak. I've heard that the herpes virus is in the chicken pox family (don't quote me on this). My sister and I break out in fever blisters all over our face when we are over exposed to the sun and STRESS. We have a prescription for Zovirax 5% ointment that we use at the slightest feeling/twinge of a breakout on our face. It helps but does not prevent. Cheese, -- Constance Allen aka F.I.G. Newton (Rumpole's Private Detective) Ripon, California mailto:constance_allen@charter.net