That means your disc is getting weaker may be due to injury or repeated stress more than it could bear or age related. At these point if you are not having much discomfort or pain then you should go for physiotherapy for correcting posture, strenghting of back muscle, back care and modification in routine activities. these will not treat the bulge or it will not strengthen the disc but it will definitely strengthen the supporting structure of spine and prevent stress directly over that pericular disc. With proper care and exercise it will remain as it is. But there will be improvement in pain gradually. If proper care,rest,exercise and precautions are not taken now on u know the culprit of next episode of pain. and that is lack of understanding the cause. In future this disc is at risk of further protrusion.disc prolapse,nerve compression, etc. I don t want to scare you but this is for your awareness. Know your limitations know your care in that limit do everything you can.