What is cause for "mouth ulcers" Is mouth ulcers are caused by acidity" Since one month I often get mouth ulcers on my lips ?I travel daily 2 to 3 hrs in bus in metropolitan city, so are this mouth ulcers are caused due to explosion of lips to fast air and dust? Can any one suggest me home remedies?

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.