I have a huge mouth blister under the tongue?

Ok: How long has it been there? Any habits like smoking or chewing tobacco? Is it actually an ulcer or a blister? Condition of your teeth? The answers to these questions will help your local dentist or physician make a proper diagnosis. Give either of them a call for an appointment.

Canker sore: appear in the mouth and can be painful, specially under the tongue. The canker sores are the most common oral lesions. The cause is unknown. These lesions are bumpy and painful. Topical medications OTC applied directly, mouthwashes, and oral medications can relieve pain or inflammation. Rec.: if not comfortable see a dentist for soft tissue laser treatment.