What Is The Cause Of Discomfort And Discharge In Penis?

I had sex a week ago yesterday I felt a discomfort didn t worry about it but 2day I noticed a scab at the bottom of my penis with a clear discharge not big and it itched a lil the female I called and asked her about anything she recently had a yeast infection that her doctor provided medicine for I work out alot doing alot of cardio and I work on a warehouse for 12hrs 6 days out the week I wanna know if this could be herpes