1. Use a condom every time you have sex.
2. Ask your partner if they have ever had a sexually transmitted disease.
Most people who have genital herpes don't know they're infected, so ask whether they have had any other sexually transmitted disease. People with a history of STDs are more likely to have genital herpes.
It may be awkward, but it's important to be honest with each other. Your partner may be afraid to tell you the truth if they fear a negative reaction. If your partner feels comfortable talking with you, you'll be more likely to get straight answers.
3. Ask your partner about their sexual history.
Someone who has had many sexual partners is more likely to be infected with the herpes virus.
4. Limit the number of sexual partners you have.
The fewer sexual partners you have in your lifetime, the less likely you are to be exposed to the herpes virus.
5. Don't have sex with a partner who has sores on their genitals.
If you know your partner has genital herpes, always abstain from sex when symptoms are present. Or, if you see a sore on someone's genitals, don't have sex with that person until you're sure they don't have genital herpes. Remember, not everyone with genital herpes has symptoms, and herpes sores can be very hard to spot.
6. Don't receive oral sex from somebody with a cold sore.
7. Ask your partner to be tested for genital herpes.
If you think your partner is at high risk for genital herpes, you may consider asking them to be tested. In that case, you should be tested, too.
8. Don't have sex while intoxicated.
Alcohol and illicit drugs lower inhibitions and impair judgment. People tend to be less careful about practicing safer sex while intoxicated and they often regret it later.
9. Abstain from sex until you have a life-long monogamous partner.
The only way to be 100% certain you won't get a sexually transmitted disease is to have just one sex partner who has no STDs -- and only if both of you stay monogamous.
10. Try alternate forms of sexual intimacy.
If you don't want to be monogamous or totally celibate until you find a life partner, you could greatly reduce the risk of getting a sexually transmitted disease by doing things that don't involve genital-genital contact or oral-genital contact, such as mutual masturbation.