Time: If the problem persists for more than 10 days or gets worse, see your doctor or dentist about it. Canker sores usually resolve in 10 days or less.
Answered 10/9/2018
2.2k views
2 doctors weighed in across 2 answers
4 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
11 doctors weighed in across 3 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question