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.
1 Pemphigus vulgaris, a potentially fatal skin disease, causes blisters in the mouth or skin; these painful blisters become raw and crusted after bursting. 2  Bullous pemphigoid causes less severe blisters that heal faster and are not life-threatening; this condition is seen mostly in elderly people.