Crooked mouth usually takes 2-4 weeks to heal. Crooked mouth can be caused by peripheral facial neuritis or cerebrovascular disease. For crooked mouth caused by peripheral facial neuritis, the treatment time will be different according to the clinical classification, such as mild, moderate and severe. For mild patients, it usually takes about a week, and for moderate and severe patients, it takes about 2-4 weeks to heal. Cerebrovascular disease caused by crooked mouth in the acute phase of the general treatment is about 2-3 weeks, after the acute phase of the rehabilitation of the treatment of most patients can be cured, only a few patients will have sequelae. Therefore, it generally takes 2-4 weeks to cure the crooked mouth, and if some of the cerebrovascular patients are not cured after 2-4 weeks, they may have after-effects.