I've tried both.

I used viagra when I had stress related ED from my last job. It got the job done without any problems. Well, besides that annoying blue tinge to everything I looked at, but I was willing to put up with it for a boner. I understand and appreciate your desire to not introduce another medication to your body, but if your doc thinks it's ok...you might wanna check it out.

Cock rings are ok, but I've found them a little tough to work with. It's a cheap alternative and doesn't take much to figure out if they'll work for you or not, so try them first. If you're satisfied...you're good to go!

Good luck.

__________________
Though I am different from you,
We were born involved in one another.

For it was not into my ear you whispered, but into my heart. It was not my lips you kissed, but my soul.

Complete surrender should not just come at moments in which one faces overwhelming odds, but in the calm when it seems one is personally in complete control of one's life.