Factors during sex. Some people find that the friction of sexual intercourse irritates the skin and brings on symptoms. Using a water-based lubricant can help reduce irritation. Don't use one that contains the spermacide nonoxynol-9, however. Nonoxynol-9 can irritate mucous membranes, such as the lining of the vagina. Oil-based lubricants are a no-no, too. They weaken latex, making condoms more likely to break. Even if the friction of intercourse seems to be a trigger for your symptoms, it probably won't cause a flare-up every time you have sex.
Colds and sunlight. The common cold and sunlight seem to trigger outbreaks of oral herpes (cold sores), but no proof exists that they trigger genital herpes outbreaks.
Hormones. Hormonal changes, like those that occur in the menstrual cycle, can affect genital herpes outbreaks. No one knows why yet.
Surgery, weak immune system. Trauma to the body, such as having surgery, may make herpes symptoms appear. It's possible that having a weakened immune system does, too. People whose immune systems are weakened by HIV, for example, tend to have outbreaks more often than people with normal immune functioning do.

Remember that triggers may not be the same for everyone, and doctors are not certain how much lifestyle has to with outbreaks of herpes symptoms. If you think one triggers your symptoms, ask your doctor what you should do about it.

For more guidance about relieving emotional stress, see How To Tell Your Partner or What to Do if Your Partner Has Herpes.

You may also find reassurance by clicking on Re-Entering the Dating Scene and Sex and Herpes.

For more information and help understanding words you may hear about genital herpes, see Resources and the Glossary.

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