The healing time for peripheral neuritis is related to the severity of the condition, the primary disease, and other factors. Mild forms of peripheral neuritis usually improve within a week or so after proper treatment, but peripheral neuritis that does not get rid of the cause may persist for a long time. Peripheral neuritis is a multiple peripheral nerve damage caused by a variety of causes. Common causes include poisoning, nutritional and metabolic disorders, infection, allergy, allergic reactions, and compression. The main clinical manifestations are symmetrical sensory, motor and vegetative nerve dysfunction in the distal extremities, similar to glove and garter-like changes. For the treatment of peripheral neuritis, in addition to nerve nutrition, the etiology should be targeted. For example, patients with lead and mercury poisoning should be removed from the poisoning environment; diabetic patients should have their blood glucose monitored and regulated to bring it into the normal range; patients with infections should be treated with active anti-infection therapy, and symptoms will usually improve within a week or so. There are many causes of peripheral neuritis, and treatment of the cause is necessary to completely cure the disease, while in patients who do not eliminate the cause, peripheral neuritis may persist for a long time.