How can I stay safe? Condoms can effectively prevent HIV and other sexually transmitted infections from being passed on. If your condom broke or wasn’t used, you could access PEP, a type of treatment that can last up to 28 days that may prevent HIV. Click here for more information on this. Clean needles and syringes are available if you inject drugs – please avoid sharing needles or other injecting equipment; its not just HIV, Hepatitis C can be an issue too. Click here to find your nearest needle exchange service.