Bell’s facial paralysis is not well in 20 days, patients do not need to worry too much, most patients with Bell’s facial paralysis show some recovery within 2 to 3 weeks after the onset of symptoms, and complete recovery within 4 to 6 months, the overall prognosis of this disease is good, but a small number of patients may also experience incomplete recovery or incomplete recovery of facial nerve function. Incomplete paralysis of the facial nerve and early recovery from facial paralysis are major factors in the favorable prognosis of Bell’s facial paralysis, with a higher degree of recovery in patients who begin recovery earlier, are younger, and do not have postauricular pain. In patients with complete facial nerve palsy, the prognosis is generally poor, and if the patient does not show any signs of recovery within 3 months, other etiologies should be further excluded. Bell facial paralysis for 20 days, it is recommended that patients actively cooperate with the doctor’s treatment, through vitamin B1, methylcobalamin and other drugs to nutritional nerves, along with exercise training, physical factor therapy, acupuncture treatment and other means of rehabilitation, pay attention to facial warmth in daily life, strengthen the exercise, improve immunity, and promote the early recovery of the disease.