These can be bacterial infections or viral infections.
Roof of mouth sore and swollen allergies.
The roof of your mouth can be swollen and sore due to infection in your mouth.
Stress and hormonal changes may trigger a canker sore.
For the most part the pain will more than likely subside once treatment for the infection has begun to do its work.
43 years experience allergy and immunology.
Seasonal allergies may typically affect the eyes and respiratory mucosa nasal passages and bronchial tubes.
Pain can also occur from irritants like smoking dental trauma or eating certain foods.
Read below for more information on other causes and treatment options.