The herniated part of the disc can be resorbed by the inflammatory process, which means that inflammatory cells, such as macrophages, can remove the damaged tissue. The healing time can range from several weeks to months.
Conservatively treated massive prolapsed discs: a 7-year follow-up (The Royal College of Surgeons, 2010):
The mechanism by which ...
This answer is about the effect of NSAIDs and steroids on the resorption of disc herniation and pain.
There seem to be no clinical trials in which NSAIDs or other drugs would slow down the resorption of disc herniation. Results of in vitro studies suggest that steroids may be able to delay resorption, but NSAIDs less likely.
According to the ...
Differential diagnosis in an adult man with a unilateral pain in the gluteal area lasting for over a year and not worsening, without a history of trauma, infection or inflammatory arthritis or other conditions (an incomplete list):
Degenerative disc disease (DDD) with bulging or herniating disc(s) pressing upon the spinal nerve root(s)...