Brush and floss your teeth. Use a mouthwash. If you don't want to use a commercial brand, use warm salt water.
- always brush/floss your teeth
- 100%!!! Buy a tongue scraper. Big difference after doing this.
- get any tonsil stones pushed out
- drink lots of water
- have minty/sweet gum handy just in case--hard candy will make it worse
If this doesn't work, make sure to check with your doctor to see if there's anything wrong with your stomach, like if you have acid reflux.