Your chances are low. The only possibilities here are syphilis, gonorrhea and herpes type 1 (if you've had a cold sore before, don't worry about hsv1).
However, that said, your chances of anything are really low. Oral sex is pretty low risk, and considering the action was only seconds long, I wouldn't worry.
Also, using disinfectants, etc., on your genitals can lead to all kinds of things, and you don't want to do that to yourself.