In addition to the use of non-steroidal anti-inflammatory drugs, opioids, and analgesic aids, the nerve block technique is arguably the most common technique used by pain physicians. It is effective for many tendon sheaths, bursae, tendonitis, sacroiliac arthritis, pear-shaped muscle syndrome, tennis elbow, and carpal tunnel syndrome in the shoulder, neck, low back, or extremity areas. In postherpetic pain, trigeminal neuralgia, sciatica, phantom limb pain, burning-like pain and other refractory neuronal pain, the application of specific nerve block technique and nerve frequency (thermal) electrical modulation stimulation has achieved satisfactory therapeutic effects by blocking nociceptive conduction pathways, improving nerve trophic status and adjusting nerve conduction function. In actual clinical treatment, some diseases are ineffective with conservative treatments such as drugs, and are not suitable or cannot tolerate surgical treatment. If nerve block therapy is used, the effect that cannot be obtained by drug therapy can be obtained, and it is less damaging, faster and more tolerable than surgery for patients. In other words, nerve block therapy is a treatment measure between drug conservative treatment and surgical treatment.