Most of mine that had it bad, had it on 2-4. A couple had it out for 6 months+. One finally went down, and the dog didn't have a heat cycle for years. She was in really bad shape from it, just couldn't piss or shit. The other would never go back and I ran out of patience. This dogs sister had a bad one and ate it off, which worked I guess, because it never popped out again.
Their momma had it bad on #2. I had some silly opinions about this dog, got drunk and bred her. Within days the swelling went down. She was less than 2, I took her squirliness as style, but I'm glad I did it. No issue since, just needed to breed her off the yard but oh well on that.
If its not bad I'd just give the sugar treatment jmo