Several home remedies may help relieve pain and help the sore heal. One simple home remedy is a saltwater mouth rinse. Simply dissolve one teaspoon of salt in half a cup of warm water. Swish the mixture around your mouth for 30 seconds. While this method does not completely get rid of the sore, it does help speed up the healing process. Additionally, saltwater rinses help to promote healthy gums. Be sure to avoid putting the solution on the ulcer, as it may sting a little.
Although canker sores are fairly common, if they last more than two weeks or recur more than three times a year, it is best to visit a doctor. Symptoms of the sore should be checked for a medical condition, such as a bacterial infection or an underlying illness. If the symptoms persist, a doctor may recommend an oral antiviral medication, such as famciclovir, acyclovir, or valacyclovir. Once treated, cold sores usually disappear within 10 days, but you should avoid kissing or sharing drinks with anyone else who has them.
Home remedies for canker sores may include apple cider vinegar. Apple cider vinegar is known for its antibacterial and anti-inflammatory properties, so it may be a good treatment option. Mix one teaspoon of ACV with a cup of water and gargle for 30 seconds every day. Although apple cider vinegar may help heal canker sores, you must be careful not to overuse it, as it may damage tooth enamel.