Sudden swelling of lips into sausage mouth is considered to be related to various factors such as trauma, allergy and herpes simplex.
1. Trauma, if the lips are hit by external forces, may lead to tissue fluid leakage, so the lips suddenly swollen into a sausage mouth symptoms.
2. Allergy, if you are frequently exposed to allergy-prone substances, it may lead to an allergic reaction and angioneurotic edema of the lips, which may result in this symptom.
3. Herpes simplex, if the virus invasion induced herpes simplex, may lead to increased skin sensitivity, such symptoms.
Usually need to observe the lips, maintain a good diet, light diet, avoid aggravation of symptoms.