Herpes also know as cold sores are very contagious, so if your not careful you can pass them on to your spouse, your children, or anyone else who you share a glass with or kiss. Oral Herpes is the cousin to Herpes Simplex 2 (genital herpes). The herpes virus can not be cured. So when it’s not presenting itself on or around your lips, It is lying dormant in the nerves near your brain stem. They seem to attack when your body is distracted fighting off a cold.

Here are some factors that may awaken cold sores:
Stress
Too Much Sunlight or Heat
Weak Immune System
Sickness (Colds)
Here are a few Natural Remedies that are a tremendous help:
Lysine: An effective virus blocker. There are salves. (Your local Whole food store probably has it.) The salve is very effective.
Food with Lysine: turkey, ricotta cheese, avocado, eggs, and chocolate.
Yogurt is a bacterial fighter. The acidophilus bacteria found in some brands of yogurt helps counter cold sores. If cold sores are chronic eat 2-3 cups a day. If you are lactose intolerant, there are dairy free brands. Such as soy, coconut, etc…
Ice: At the first sign of a cold sore, use Ice on the area for as long as it is comfortable, take a break, and then reapply. Viruses don’t work well in cold environments. 
Must Avoid
Arginine (A non-essential amino acid- This means that the body doesn’t have to get it through food sources, we can make our own)…Foods with arginine, you must stir clear of; especially during outbreaks… Some foods are
Nuts (cashews, almonds, peanuts, walnuts), seeds (sunflower and sesame), milk and cheeses.