Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern..
As per your complain there is a possibility that severe gastritis is also leading to
acid reflux in case if you also have symptoms of
heartburn,irritation in throat and sour and acidic taste in mouth..
Acid reflux can be a potent cause of mouth ulcers..
Stress is another potent cause.
In case if it is not evident then mouth ulcers or canker sores can be due to other causes like deficiency of iron and
vitamin B12, hormonal imbalances, excess intake of sour foods,physical injury etc..
I would suggest you to consult an Oral Physician and get evaluated and a thorough clinical evaluation can help in diagnosis and treatment of underlying cause can help in resolution..
As of now you can start taking multivitamins daily..
Gargle with numbing mouthwash containing Lignocaine to relieve pain..
You can also take
Acetaminophen or Ibuprofen..
Avoid hot and spicy food..
Take
soft diet and drink plenty of water..
Suck on ice pops to reduce inflammation..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.