I had pain in my gum on the left side and cleared that pain up, but a few days later I realized I had a big bump was there. Perhaps it was simply swollen, I used the therapeutic amount for a mouth rinse and held it for 5 minutes before spitting it out. After doing that 3 times over 2 days the gum was almost normal. Good thing I had received this only a few days before discovering the swelling. It is slightly swollen now but not a worrisome thing.