I am glad that you realize this is not a very serious condition.
As I mentioned in the previous post, you are most contagious when you have a cold sore. During that time, avoid kissing and oral sex. Do not share eating or drinking utensils. (This is a good idea for everyone at any time).
Here is some advice from the University of Illinois McKinley Health Center:
"Like other herpes viruses, including chicken pox and mono, the herpes simplex virus stays with us for life. Although you may not always be able to prevent outbreaks, there are some self-help measures that may reduce the frequency of recurrences. When in the sunlight, use a sunscreen with a minimum protection factor of 15 or a preparation containing benzoic acid. Practice stress management techniques such as inhalation exercises or progressive relaxation. Exercise regularly and get adequate rest."
If you want to read more, check it out: http://www.mckinley.illinois.edu/handouts/herpes_simplex/herpes_simplex.html