I had acne as a kid. My mom was kind enough to start me on Mary Kay productrs. Never have problems as long as I use those products.
As far as the fever blisters/cold sores, I have had them for years about twice a year. My dentist confided he had had problems too and he found a product called Denavir. It is in a very small tube, costs about $38.00 per, and as soon as one feels the 'tingle', they should apply by rubbing in to the area several times a day.
Love this product. In the last three years I have had only three flare-ups. Stress can really make these problems act up as well as sugar, diet drinks, and poor eating habits. I use a an SPF lip balm on my lips several times a day as sun and wind can cause a flare-up. I go to the $ store and buy it.
OMgoodness, how funny. DD came home and is emptying her sacks of goodies and just gave me a package of the Chap-Ice SPF 15 and Chap Ice medicated. Too funny. I have these things in purse, car, book bag, crochet bag, bedside table, recliner table, sewing table, you name it. I use these constantly.