A nerve block is a medical procedure used to relieve pain by injecting anesthetic medication near specific nerves. This technique temporarily interrupts the transmission of pain signals from the affected area to the brain, providing significant pain relief for various conditions, including injuries, surgeries, or chronic pain. Nerve blocks can be performed in different areas of the body, such as the spine, arms, or legs. They are often used in conjunction with other pain management strategies and can help reduce the need for opioid medications, making them a valuable option for patients seeking effective pain control.