Lidocaine injections are used primarily as a local anesthetic to provide temporary numbness in targeted areas of the body. This allows for pain-free medical procedures such as surgeries, dental work, and certain diagnostic tests. Lidocaine works by blocking nerve signals in the area it is injected, making it effective for managing acute pain and discomfort. In addition to surgical applications, lidocaine injections are often utilized for pain management in conditions involving chronic pain or neuropathic pain.