Less than a week: They may disappear from 3 to 7 days in most cases.
Answered 8/18/2013
4.9k views
7 to 10 days: Canker sores usually heal within 7 to 10 days. Spicy and acidic foods and drinks can increase your pain so be careful with your diet.
Answered 8/18/2013
4.9k views
8 doctors weighed in across 2 answers
5 doctors weighed in across 2 answers
8 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