Hi Jesse, I can so relate to girth galls! That really stinks.
Here in Central Florida, we've had a warm and very wet Summer. I ride about 4-5 days per week and ride about 1-1.5 hours each outing.
I thought I had all the right fitting tack to make our horse safe to ride, comfortable under saddle, and be good for him long-term.
About 6 weeks ago, Chuck developed some girth galls that became problematic very quickly. Aside from treating the sores, I came to the realization that our Weaver (felt backed) Smart Cinch seemed to be part of the problem.
If you've hunted through this forum and others, that are many treatment options out there as well as a ton of advice from a tack perspective that you can read through.
I talked to a saddle fitter who reviewed what tack we used. Our saddle fit fine, but in order to help prevent girth calls from reoccurring, we talked about rigging our latigo's differently. Additionally, I switched over to a Alpaca Roper girth.
From a treatment perspective, I would generally recommended keeping the wound(s) clean and I use Saline for that. I've had great success using a product called Well-Horse. There are so many good wound care products out there and I think it is a matter of finding what works best for your horse.
Also, I gave our horse some time off to allow the wounds to heal. It took about 3 weeks before I was able to ride again and at the same time I went ahead and switched out our tack and rigged our saddle differently.