Be mature about STIs and reassure yourself and your partner that an STI is not a moral judgement of character, but an infection like any other. These are available in drug stores without a prescription. If your partner refuses to use a male condom, you can use a female condom, which fits inside the vagina. Never use a condom that is brittle, sticky, or discolored, or in a damaged package. You can also use an unused condom cut lengthwise. Similarly, herpes can be transmitted from a person's genitals to an uninfected partner's mouth. It doesn't have to. Transmission is possible but not as common for oral sex givers. Don't keep a condom in your wallet for more than a few hours at a time. However, "safe sex" implies zero risk of STI transmission and pregnancy; ideally, sex that does not involve the exchange of blood, semen, or vaginal fluids, nor the transmission between partners of the organisms bacteria, viruses, protozoa, etc. Skin-to-skin contact, as in genital-to-genital, mouth-to-genital, or mouth-to-mouth contact, between a sore and a partner's uninfected mucous membrane is necessary for transmission. Using dry condoms and dams for oral sex eliminates the risk of contracting these kinds of infections. If this happens, you must use condoms and the pill for the rest of the pill cycle. Safe sex myths Some people believe, or may try to persuade you of, various myths about safe sex, such as: Between outbreaks, condoms and dams significantly lower the risk of transmission during vaginal, anal, and oral sex.