I have a chronic cough since 2-3 months caused by allergies. I cough a little bit everyday, and have a litlte pain and tickle feeling in my throat. I dont cough up blood. I was tested negative for all sti/std including hiv around 2 months ago. Today i performed oral sex (cunnilungus only near clitoris) for about 10-15 minutes on unknows status girl. What is the chance to be infected that way if you have chronic cough ?