Mouth ulcers develop when we brush our teeth excessively or when we eat hard foods or even stress can cause mouth ulcers.
This is my alternative way of healing it and ease the pain, you will need a half glass of water and a salt. Simply dissolve the salt into the water and gargle it making sure to touch the area where the mouth ulcers erupted. I noticed that the mouth ulcer will last in just 3 or 3 days. It can ease the pain since their is a feeling of coldness and freshness when gargling the mixture.That technique is just for me, their is no medical explanation about it but hey their is no harm in trying :)