“The initial signs and symptoms of GBS are varied and there are several disorders with similar symptoms. Therefore, doctors may find it difficult to diagnose GBS in its earliest stages. There is no known cure for Guillain-Barré syndrome. However, some therapies can lessen the severity of the illness and shorten recovery time. There are also several ways to treat the complications of the disease. Typically, the point of greatest weakness occurs days to at most 4 weeks after the first symptoms occur. Guillain-Barré syndrome can be a devastating disorder because of its sudden and rapid, unexpected onset of weakness—and usually actual paralysis. Fortunately, 70% of people with GBS eventually experience full recovery. The recovery period may be as little as a few weeks up to a few years. ”

National Institute of Neurological Disorders and Stroke – NIH (https://www.ninds.nih.gov/guillain-barre-syndrome-fact-sheet)