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Here at Ending HIV we get a lot of questions about sexual health. So, before you submit your question, check if it has already been answered. Can’t find it? Submit it below and one of our peer experts will get back to you.

Ending HIV is a sexual health campaign for gay, bisexual and other guys who have sex with guys, based in NSW, Australia. As such, we prioritise questions received in relation to these communities. If you are living overseas or in another state, there may be limits to the support we can provide. While our peers are highly knowledgeable, they can’t give specific medical advice. Whatever your concern, always seek the advice of a doctor or trained medical professional you trust.

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I got herpes recently. But I confirm I take prep on-demand well. On the Internet, it is said that the affected area of herpes will gather a lot of immune cells to increase the rate of HIV infection. I wonder if this means that my prep may fail?

Hi, That’s an excellent question. STIs, such as herpes, can create sores on your body that become easy entry points for HIV infections. However, it’s good to hear that you’re taking PrEP! PrEP is highly effective in preventing HIV infections when taken correctly. This means that even with your herpes infection, the risk of HIV transmission is very low. If you live in NSW and have further sexual health questions you can call the Sexual Health Infolink at 1800 451 624 where a sexual health nurse can answer your questions over the phone. We also recommend consulting with your doctor or PrEP prescriber for further medical advice and to continue having discussions around how to take PrEP correctly (including On-Demand PrEP). Our blog also has more details which is always great for a refresher when needed: https://endinghiv.org.au/blog/prep-on-demand-dosing-guide/.

I was giving my positive partner a Blowjob He is on art meds odefsy but found out for aug his blood test came out positive and his white blood cell count was slightly over the detectable side well making him 100% positive and tasted the precum on accident I got scared and quit giving it when I tasted it. And so scared and worried I have it help me please I'm constantly biting my in ng um flesh with my teeth the precum I tasted wasted a huge amount it was a drop should I worry help please I can't sleep its scaryinge???

Hi, Thanks for your question. This risk of HIV being transmitted through blow jobs is very unlikely. This risk can increase if there are cuts or sores in your mouth or throat but even then the risk is quite low. HIV transmission risk is high during unprotected penetrative sex so we recommend using an effective HIV prevention strategy when fucking, especially if your partner’s viral load has become detectable. This includes condom, pre-exposure prophylaxis (PrEP) or undetectable viral load (UVL). You can read more about those options here: https://endinghiv.org.au/stay-safe/. However, the risk of other STI transmission can be different during blow jobs. We recommend to people who are sexually active to get tested for HIV and STIs 4 times a year (every 3 months) with their doctor or at their local sexual health clinic. While small blips in viral load don't necessarily increase risk, it is hard to comment on your situation. To help alleviate your concerns and discuss your situation in more detail, we would recommend you speak to your Doctor or someone at your sexual health clinic. If you live in NSW, you can also call the Sexual Health Infolink at 1800 451 625 where a sexual health nurse can answer your questions over the phone.

Is taking two different brands of PreP as effective as taking the same one?

Hi, Thanks for this question. Before starting, stoping or changing any medication such as PrEP it’s essential that you speak with your GP or healthcare provider. In terms of getting health advice around the different brands of PrEP and taking multiple brands, we recommend consulting with your doctor for further professional health advice. You can also find out what options are out there on the PrEP Access Now website: https://www.pan.org.au/. Don’t have a GP or sexual health care provider? – no worries! If you live in NSW, you can also call Sexual Health Infolink at 1800 451 625. It’s a free service that will put you in touch with a sexual health nurse who can answer your questions over the phone. They can also help you find your nearest sexual health clinic! As a medication, when taken effectively, PrEP is highly effective at preventing HIV infections. For more info on PrEP and how effective it is, check out our website here: https://endinghiv.org.au/stay-safe/prep/

Hie. I jus recently discovered that my girlfriend is hiv positive nd has bin taking medicine for about five years now. Ive been using protection but my worry is we always have oral sex nd somtimes wuld swallow her virginal fluids. What are the chances of me contracting the virus

Hi there, thanks for your question. If someone is HIV positive, taking their treatment and has an undetectable viral load (UVL), it is not possible for them to pass on the virus to their HIV negative sexual partners. This is because there is not enough of the virus in their blood for it to be transmitted. UVL is actually one of the most effective HIV prevention strategies, along with condoms and pre-exposure prophylaxis (PrEP). Considering you are also using other forms of protection (either condoms or PrEP) you should be protected from HIV transmission. Oral sex is very low risk for HIV transmission. This risk can increase if there is cumming in the mouth and cuts and sores are present, though this risk is still considered quite low. The risk for other STIs to be transmitted during sex can be different. We recommend to anyone who is sexually active to test for HIV and STIs four times a year (every 3 months) with their doctor or local sexual health clinic.

Hi. I would like to know what if someone accidently swallow precum or cum in the mouth with hiv patients who has been on medicine? The diagnosis of the hiv patient showed no virus is detected, thanks to the medicine.

Hi there, thanks for your question. It sounds like your partner was a person living with HIV who had an undetectable viral load. If someone is HIV positive, taking their treatment and has an undetectable viral load (UVL), it is not possible for them to pass on the virus to their HIV negative sexual partners. This is because there is not enough of the virus in their blood for it to be transmitted. UVL is actually one of the most effective HIV prevention strategies, along with condoms and pre-exposure prophylaxis (PrEP). You can read about UVL and the studies that support its effectiveness on our website here: https://endinghiv.org.au/treat-early/about-undetectable/.

Where can i find the evidence that Prep on demand and periodic does work like daily taking pills..! Does Australian health government has approve it?

Hi there, thanks for your question. PrEP dosing strategies including on-demand dosing and periodic PrEP dosing have been endorsed by ASHM (Australasian Society for HIV, Viral Hepatitis, and Sexual Health Medicine) – a peak organisation of health professionals who work in HIV, viral Hepatitis, other blood born viruses and sexually transmitted infections. You can find out more about ASHM and any PrEP related resources they’ve created on their website here: https://www.ashm.org.au/HIV/PrEP/. The decision to endorse on-demand PrEP was based on a technical brief developed by the World Health Organization (WHO). The data on how efficacious on-demand PrEP is for MSM came initially from the randomised, placebo-controlled trial called IPERGAY which found there was an 86% reduction of risk of HIV infection when compared to those taking a placebo. For information about the data regarding on-demand PrEP’s efficacy; https://prepguidelines.com.au/goals-of-prep/on-demand-prep/ In regards to periodic PrEP, this is essentially the same as daily dosing of PrEP but just on shorter-terms/periods.

Hello there, I’m a male and I had a body and genital rubbing with another guy with no penetration. I asked the guy to test for HIV and he did test 3 & 7 weeks after the encounter using 4th generation (AG/AB) and both came back negative. Shall I worry and test myself despite the fact I tested before I met him and I was negative.

Hi there thanks for your question, there is no risk of HIV transmission when it comes to genital rubbing or frottage. However, the transmission of other STIs through frottage can be different so we recommend to anyone who is sexually active to get tested for HIV and STIs regularly (4 times a year or every 3 months) with their doctor or local sexual health clinic. For HIV to be transmitted it requires the bodily fluids (blood, semen, front hole or vaginal fluids, anal fluids or breast milk) from a HIV positive person not on treatment to enter the bloodstream of a HIV negative person. Often this is through unprotected penetrative sex or sharing injecting equipment. You can read more about HIV and how it’s transmitted on our website here: https://endinghiv.org.au/sti/hiv/.

What if l can use PEP for only 2 weeks (14 days) does it prevent HIV....???

Hi there, thanks for your question. PEP can only considered to be effective if you start it within 72 hours of potential exposure and finish the full course over the 3 week period. If you are in NSW you can call the PEP helpline on 1800 737 669 and speak to a sexual health nurse who can help determine if PEP is needed in your situation and where you might be able to access a full course of treatment.

Does PrEP cause gynecomastia in men? I have had gynecomastia since puberty (since about 15) and have taken PrEP for the last two years. I've just had surgery to remove the gynecomastia at 24 and would like to restart PrEP but have seen some studies that it could potentially cause gynecomastia?

Hi there, thanks for your question. Given you have previously sought treatment a specific medical condition, we’d encourage you to discuss your concerns regarding initiating PrEP with your prescribing doctor