Most disc injuries improve and heal with time. This is true of all types of disc injury including slipped discs, disc herniations, sequestered discs etc.
A systematic review found that 96% of sequestered discs regressed spontaneously (without surgery).
In addition to this, many of us have disc bulges without even knowing it as they can be completely asymptomatic. So you may have changes to a disc which can be seen on MRI but don’t cause you any pain.
You can improve your chances of recovering from back pain by staying active, maintaining good general health including good sleep and diet, and committing to regular exercise.