Condoms are not foolproof, but when used properly they are highly effective in preventing HIV infection and other STDs. Handle the condom carefully. Put the condom on as soon as the penis is erect. Squeeze out any air at the tip of the condom. Use a water based lubricant with the condom for vaginal or anal sex.
Oil based products can cause condoms to break.
Hold the condom firmly by the rim while withdrawing after ejaculation. Wash your hands after disposing of the condom. Tell him or her you're infected and then discuss the options. If you are pregnant or planning a pregnancy, ask you health care provider or family planning service for advice. Avoid sharing personal care items such as razors and toothbrushes.