Oral sex is less risky when it comes to getting or transmitting an infection, but some STIs can still be passed on through oral sex. To be as safe as possible:

• Use condoms (try flavoured ones) for oral sex involving the penis.

• Use dental dams for oral-vaginal and oral-anal sex.

• Don’t get semen or blood in your mouth.

• Avoid oral sex when you have mouth ulcers, bleeding gums or cold sores.

• Don’t brush your teeth immediately before oral sex.

Using dental dams

A dental dam (or oral dam) is a very thin, rectangular, "satin-like" piece of latex. It gets its name from the protective shield dentists use during oral surgery.

Dental dams will reduce the risk of transmission of many sexually transmitted infections, including HIV, but are not 100% effective.

While the thought of using a sheet of latex during oral sex may seem strange, dental dams are easy to use and don't decrease sensation during oral sex.

This information has been taken from www.couldihaveit.com.au