I know that Viagra is used by MS patients for ED (though, of course, I don't require it).
Working around the "problem" with the use of tape and popsicle sticks does NOT mean that you aren't affected by ED.
It's always seemed sensible that improved circulation would be helpful to improve/save function in the areas of brain tissue isolated by the scarring of MS lesions.
Unfortunately, if you are like me, and in this case I think you'll lie and say that you are, when the necessary amount of blood goes....."down there", it doesn't leave enough blood to power my brain.
At that point the choice becomes accepting "MS related neurodegeneration" VS "oxygen starvation related neural degeneration" so I'm not sure how much of an improvement that is