Diffuse disc bulges (with or without nerve impingement) in MRI is a natural process as we age and can be found in your MRI even if you have no back pain or nerve pain.
Nothing needs to be done and nothing can be done to reverse this natural aging.
But if there is back or nerve pain, you will need a spine specialist to examine the MRI images in detail to assess the severity of nerve impingement.
You cannot just base on what the report says.
If not serious, most will need physical therapy to treat the pain and strengthen the back just like any aging joints in your body.