I have a gum disease, have had it for years and now it's flared up bad again. A new hygienist at my dentist has advised me to just brush and use dental brushes and not use mouthwash as it doesn't do anything, she also said not to rinse my mouth after brushing my teeth which has been said to me before. However the previous hygienist advised me to use Cordysl mouthwash. My friend said her dentist tells her to use mouthwash so now I'm confused.