How do you know if a mouthwash treats instead of perfumes? mouthwash, know, How, perfumes, instead

I might have some minor gum inflammation and I read that treating mouthwash can make it go away.

The best way is to check the label.  In a theraputic mouthwash you'll find ingredients that are meant to kill germs and treat or at least address gum disease.  I'm certainly not the last word in mouthwash, but as I think of it, I'm not sure I've ever seen a mouthwash meant just to perfume breath.  That's what doublemint and altoids are for!  =D