the other day i was eating chips and when i was done i tried to get some chips that were stuck between my teeth out with my finger. And when i took my finger out my mouth i noticed a really bad smell. So i investigated some more and found that the smell was coming from my gum around one of my top left molars. I brushed my, flossed...but the smell is still there. And now it has been one week since then and ive noticed the smell is still there. The area isnt sore, it just smells really bad. What do i do? Why is it smelling?