I don't really know of a way to offset the sex drive other than to, well, take care of things yourself. I understand your discomfort that prevents you from doing this, however you just may find that your libido increases enough for you to be able to do this.
Maybe try to find ways to masturbate that don't require you to actually touch anything.
Some people report no change in libido, so maybe you'll get lucky and won't have to deal with this.