I have the exact same thing, did you ever find out what it was?
I guess it could possibly be the spermicide on the condom cause i tried those for the first time. would that cause me to get redness on my scrotum and on my penis in some places as well as some small bumps?
you might have a allergic reaction or reaction to the comdom or something have you tryed using a diffrecnt brand comdom ?
Thank you very much for your post.
This doesn't sound characteristic of any STD. A heat / friction rash is certainly a possibility. You might want to consult with your doctor just to make sure it is not a fungal or yeast infection.