Is it necessary to use a dam or a condom for oral sex?
If one of you have an infection which can be passed on through sex, you are more at danger from oral without condoms or dams. So if youdoes have an infection then it’s better to use condoms or dams to prevent getting or giving them, or avoid unprotected oral if you are infectious.
Sometimes people know they have an infection but some people don’t know (because often STIs don’t have recognizable symptoms). Sometimes people may have an infection and not tell the other person. For this reason it might be worth you going to a sexual health service and having a chat with a health adviser or someone else who can provide you some one-to-one advice.