Canker sores: The exact cause of canker sores is unknown., but they are related to stress and sometimes vitamin deficiencies, hormonal related, or autoimmune problems. Some people are sensitive to SLS in many toothpastes. Try switching to an SLS free toothpaste. Read the labels.
Answered 1/20/2017
3.9k views
3 doctors weighed in across 2 answers
9 doctors weighed in across 4 answers
11 doctors weighed in across 4 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question