A literature review discusses published information in a particular subject area, and sometimes information in a particular subject area within a certain time period.
Herniated discs often do not need to heal at all. That is because most minor and moderate herniated discs are not painful or problematic in any way. They merely exist. In fact, herniated discs are a common side effect of normal spinal aging.
Herniated discs are painful, sometimes almost incapacitating. Stretching exercises for a herniated disc are designed to reverse the movement of disc material and thereby relieve your back of pressure and pain.