What are the common treatment methods used in pain management? Oral medication: It is the most basic and commonly used method. Nerve block: It is the most characteristic and important tool. Nerve block is to achieve the purpose of pain treatment and diagnosis by blocking the nerve conduction function at the nerve trunk, nerve plexus, nerve root or sympathetic ganglion with drugs or physical methods. PCA (patient-controlled analgesia): It is the nemesis of acute pain including intravenous PCA (PCIA), epidural PCA (PCEA), regional nerve block PCA (PCRA), etc. Minimally invasive interventional treatment: It is the core technology of pain medicine specialty. Minimally invasive interventional analgesia is a new group of techniques for the treatment of chronic intractable pain. Under the guidance of X-ray fluoroscopy or CT, electrophysiological monitoring and localization, it performs selective, destructive long-acting nerve block or precise focal treatment to block the transmission of pain signals or release the compression of nerves. A variety of common acute and chronic pain can be effectively reduced or eliminated by these comprehensive treatments. Nowadays, pain treatment has formed a mature professional system, which will bring all kinds of pain patients a chance to regain peace, so that they can gradually get rid of pain and get back to the track of happy life.