Hello, You may have an oral infection such as strep throat or an oral fungal infection. Prescription antibiotics can be used to treat these conditions. Other viral conditions are possible as well and often will heal with time. Are aggravated sinus or respiratory conditions causing irritation to the oral cavity? Do you have seasonal allergies or a postnasal drip condition? Take anti-inflammatory medication to reduce your discomfort. This includes Tylenol or Motrin. Stay well hydrated and drink plenty of water. Rinse with warm salt water. Maintain a proper diet with balanced vitamins. Make sure to include adequate amounts of vitamin B12. Schedule a visit with your dentist or doctor for a clinical diagnosis and determination of medication needed to treat your condition. Thank you for your inquiry. I hope you feel better soon.