Back on track products all work great
I like to use blue lotion, then stable/standing wrap (if it's on their legs). Also cold hosing for 20 mins 2-3 times a day.
You could also wet a piece of paper (I use a piece from a grain bag), then wrap with standing wraps and clothe. Usually helps my throughbred who swells in his back legs.
If it's for their legs put a thick layer of poultice then wrap with Saran wrap with a polo wrap over it and maybe some vet wrap(i use vet wrap to make sure it doesn't fall off) you leave it on all night and take it off around 12 hours later and wash off the poultice. Do this 2-4 times a week till inflammation is gone.