Pericare but continue as normal. Use the betadine swabs thoroughly. Exercise careful sterile technique as best as possible. In the real world with patients moving and being difficult absolute sterility is often not possible. People do clean technique on themselves at home with little problem. Just use as good as sterile technique as possible.
Here is a comment as a male nurse myself I will share with you. When it comes to female patients, especially ones that are remotely young, bring another witness into a room. Another nurse, CNA, or whoever. If the patient is pissy, vindictive, or whatever, they could easily accuse you of something inappropriate. This is the world we live in. An accusation alone can ruin your life regardless of evidence, and at a minimum just the accusation will put you through a ton of stress. It's in female nature to play victim whenever they want attention or to mess with a male they don't like. I expect to catch heat on here for those comments, but anyone that has had a crazy ex girlfriend knows what I'm talking about. Young women, middle aged, and old all are capable...and one comment and you are in the hotseat, no matter how false.
The best thing to do is volunteer to trade doing caths and peri care for male patients and have female nurses do it for your female patients. If you can't, always have a witness.
Also, one of the best things you can do...is buy an audio recorder that automatically turns on with voice activation and can record many hours (like a full 12 or more at least) and save it to your computer every day. If anything ever comes up with a coworker (female coworkers eat their young and can be vindictive as well) or a patient, you have the recording. It's hard to prove a negative (like you can't prove you DIDN'T do something...because if you did not do it, there's no evidence you didn't do it)...but if you have recordings of conversations between you and patients or coworkers and you are in the right, you can catch others in lies.
Don't get me wrong, I'm not trying to bash females here...but as a male in a female dominated environment, at some point you will get messed with. Females play a completely different ballgame when it comes to adversarial interactions. Don't ever tell anyone you have anything recording, just have something small in your pocket or a audio recorder that looks like a pen.