Just gargle some hydrogen peroxide or mouthwash for more than a minute after brushing your teeth and it'll be gone in a few days or less than a week. With the hp though, add a little bit of water to it. reply
ok as someone who has had canker sores EVERY DAMN MONTH for 6 YEARS STRAIGHT (stopped after i got my braces off), use prescription mouthwash—the only mouthwash that has worked for me, orajel doesnt rlly do much :( it’s stronger than orajel and it healed in a few days!! — also this is DEFINITELY not recommended and it’ll work 30% of the time...... reply