Not necessarily all corner of the mouth blisters need to go to the hospital, you can first by direct preliminary determination of its cause, if the corner of the mouth blisters due to licking lips, biting pencils and certain diet, you do not need to go to the hospital, just pay attention to personal hygiene and rest, adjust the diet can be recovered; if the corner of the mouth blisters caused by staying up late, eating food on fire, you can first rinse heat detoxification Chinese medicine, ineffective, then go to the hospital If it does not work, go to the hospital.
If you have blisters at the corners of your mouth due to any of the above mentioned actions, it is recommended to go to the hospital immediately to further confirm the cause for symptomatic treatment.