Bell's palsy is the most common cause of facial paralysis. It usually affects just one side of the face. Symptoms appear facial palsy ms
and are at their worst about 48 hours after they start. They can range from mild to severe and include Read more on MedlinePlus. Multiple sclerosis MS is a nervous system disease that affects your brain facial palsy ms
spinal cord. It damages the myelin sheath, the material that surrounds and protects your nerve cells.