The antibacterial properties of apple cider vinegar speed up the recovery and help in fighting the germs inside the mouth that are responsible for ulcers.
Remedy:
Mix a tablespoon of apple cider vinegar into a small cup of lukewarm water. Mix the solution properly, take some of it inside the mouth and rinse. Repeat the same method and once the solution is finished, rinse your mouth with fresh water. Doing this every morning and night will help in healing the ulcers quickly.