Crooked lower lip may be caused by dental problems, may also be the emergence of facial neuritis, need to be corrected according to the patient’s physical condition. 1. Dental problems, if the lower lip is crooked due to dental problems, you can consult a doctor in time to understand the growth and development of the teeth, if the teeth bite relationship is abnormal leading to changes in the shape of the mouth, you can undergo orthodontic surgery, wearing braces, which is helpful in the later stages of physical recovery. 2. Facial neuritis, if the facial neuritis caused by the lower lip skewed, at this time you can choose to carry out acupuncture treatment or drug therapy, such as the use of methylcobalamin, vitamin B1 and other nutritive nerve drugs under the guidance of the doctor. Usually need to observe more personal situation, if there is a disease it is best to consult a doctor in time.