This can range from. None with just home exercises such as walking progressing to stretching and core strengthening over a few weeks to full activities by 12 weeks to a guided pt program basically providing the same with the addition of modalities such as heat, ultrasound, massage and muscle stimulation and reinforcement and encouragement.
Life long. Gradually progressive flexibility & strenghening with low impact general conditioning. Continues throughout life to protect the back from further injury.