Some prevention methods

• A healthy balanced diet
• Adopting stress reducing techniques and having adequate sleep
• talking to a doctor about changing medications that are known to cause ulcers
• avoiding foods that can either trigger or worsen symptoms
• keeping the mouth clean with daily brushing and flossing
• avoiding triggers known to cause outbreaks in the past

There are some medications in the form of ointments and solutions that may help with pain and swelling, but these are often not necessary for a person to make a full recovery.