How do corticosteroids provide relief in back pain treatment?

Corticosteroids provide relief in back pain treatment primarily by reducing inflammation. In many cases of back pain, particularly those stemming from conditions like herniated discs, arthritis, or spinal stenosis, inflammation can play a significant role in causing pain and discomfort. Corticosteroids are anti-inflammatory medications that work by inhibiting the immune response, thereby decreasing inflammation and swelling in the affected tissues.

When inflammation is reduced, the pressure on nearby nerves and tissues diminishes, leading to a decrease in pain levels. This anti-inflammatory effect can result in improved mobility and ease of movement as the pain subsides, enabling individuals to engage more fully in rehabilitation and other physical activities that can further aid in recovery.

Other options, such as weakening muscles or increasing nerve sensitivity, do not align with the therapeutic function of corticosteroids. Promoting relaxation may be a perceived effect of pain relief but is not the primary action of corticosteroids in treating back pain.