I noticed red blotches on my foreskin that are slightly burning. been tested for all stds (except herpes) 6wks after my last unprotected encounter w/ gf at the time. all clear. i did masterbate no lubricant same day it showed. could it be friction?

Clinic exam: Although the burning red blotches on your foreskin could be due to friction it is also possible they are infected. A local infection of this nature would of course be very uncomfortable and could spread. I suggest you go to a medical clinic as soon as possible to have the red blotches examined at this time. Treatment options should than be discussed.