It is possible to take mecobalamin tablets orally for facial palsy, and it is necessary to use them for at least 1 month. The appearance of facial palsy is considered to be caused by facial nerve paralysis, and the facial nerve belongs to the peripheral nerve, and mecobalamin tablets have the effect of nourishing the peripheral nerve, therefore, it is more symptomatic. It is necessary to take the medication explained by the competent doctor on time and insist on doing facial acupuncture, massage, acupoint injection and other treatments, just taking mecobalamin tablets orally is not enough. During the acute period of facial palsy, hormonal drugs, such as prednisone tablets or dexamethasone, can be used temporarily for a period of time, and hormonal shock therapy can have a facilitating effect on relieving the damage of facial nerve. In daily life, it is important to pay attention to the wind protection and warmth of the face, wear a thick mask, and do not wash with cold water for a while. If facial palsy is treated properly, it should heal in about 1 month. However, if the treatment is improper or the facial nerve damage is heavy, there are treatments that can take 2 or 3 months to heal.