冬春季节易发生唇裂和“烂嘴角”，主要是由于天气寒冷，气候干燥，使嘴唇、口角的皮肤粘膜脱屑、起鳞片，继而干裂出血。此时，细菌容易乘机而入，引起感染、糜烂，严重的还会出现肿胀、化脓。预防唇裂的方法：洗脸后在口唇上涂些油脂。风大外出应戴上口罩，保持口唇湿润... Winter and spring prone cleft lip and “rotten mouth”, mainly due to the cold weather, dry climate, the lips, mouth skin mucosal scaling, scaling, and then dry bleeding. At this point, the bacteria easily took the opportunity to enter, causing infection, erosion, severe swelling, suppuration. Methods to prevent cleft lip: Apply some oil on the lips after washing your face. The wind out should wear a mask to keep lips moist ...