https://www.doctork.nyc/blog/2017/5/28/smarter-fellatio#:~:text=DO rinse your mouth with,or after performing oral sex.
https://www.webmd.com/oral-health/news/20161220/mouthwash-helps-kill-gonorrhea-germs-in-mouth-throat-study
Not sure if they are reliable, but good to read as well.