You have gotten good suggestions. If it is not a pain issue, or once that is fixed, I, too, like to bring a horse back down to a trot. A strong, working trot for a while before asking for a lope again. Most often that works.
I have, however, run into a few that will try to buck again and again. It seemed to be their way of getting a rider to give up and stop the ride (work). On those few, I made them gallop. A long time. When they wanted to slow to a lope I urged them forward, only transitioning to a lope when I asked. After a short lope, we walk. After they have caught their breath I ask for a lope.
Usually in three, and a couple of times it took five sessions, they would lope off nicely enough. I had to use more leg to urge them forward when they thought of testing me, but this behavior passed soon enough.
I'm not averse to horses and humans sweating, though. And if you have to go this route, they (and likely you) will break a sweat.