For health reasons, the poison must be purged. Seriously.

A healthy purge 5 times a week lowers your prostate cancer risk by up to 34%.
http://www.menshealth.com/mhlists/pr...er/printer.php

So I agree that having sex when she has a kidney infection isn't fair to her (ouch), but her rule of No Masturbation could actually be detrimental to your long term health. That's not to say you should be beating it like it owes you money, but when you two aren't able to be sexually active you do need to get it out of your system.