Have safer sex. Anal and vaginal sex are the highest-risk sexual activities for HIV transmission. Oral sex carries much less risk.
Get tested and treated for STIs immediately. Having an STI increases the risk of getting or spreading HIV. Also, make sure that any partners you have are tested and treated as well before continuing to have sex with them.
If you regularly have sex without condoms…Talk to your doctor about HIV medicine to prevent HIV infection (known as pre-exposure prophylaxis, or PrEP) if you routinely have sex without a condom with someone who may be HIV-positive.
If you have sex without a condom with someone who is or may be HIV-positive…See a doctor immediately within three days. Starting medicine immediately (known as post-exposure prophylaxis, or PEP) and taking it for about a month reduces the chance of getting HIV.
Do not share needles. Drug equipment that involves injections should never be shared.
Start and stay on your treatment. If you are HIV-positive, start treatment as soon as possible with antiretroviral therapy (ART), and stay on treatment. Why? Treatment controls the virus in your body to improve your health and prevent you from spreading HIV to others.