Commute 45 to 59 min. 7.20%. Commute greater than 60 min.
6. This condition causes blood blisters to form on the inner cheek, gums, tongue and/or the roof of the mouth. It is caused by the herpes simplex virus 1 and symptoms, like pain, a burning sensation, fatigue and fever, will be felt.
Canker sores may also be related to a temporarily reduced immune system because of a cold or flu, hormonal changes, or low levels of vitamin B12 or folate. Even biting the inside of the cheek or chewing a sharp piece of food can trigger a canker sore. 1 | 2 | 3.