It will probably never completely stop because it isn't a sexual behavior. It's just one dog "reminding" the other one that, "I'm the head honcho and don't you forget it!" Neutering will usually slow it down, but not completely stop it. Just part of having dogs. :-)
Thank you for your advice. Any idea when it will stop? We bred one of them, and got the other one still intact. The Neutering will be soon. Not soon enough though.....ha ha
It's not a sex thing; it's just a dominance thing, and entirely normal. The dog who didn't get sick sensed weakness in the sick dog and is merely taking advantage of the situation by letting him know who is Top Dog - so to speak! It would help to have both of them neutered. Why hasn't this been done yet? :-)