Part 1 History and Theory 1 History of Local Anesthesia and Neural Therapy 2 Theoretical Foundations and Practice-Based Hypotheses 3 Interstitial Regulation System According to Pischinger and Heine 4 Ricker's Pathology of Relations 5 Functional Aspects of the Autonomic Nervous System 6 Concept of the Segment in Neural Therapy 7 Theory and Basic Principles of the Interference Field 8 Local Anesthesia in Neural Therapy Part 2 The Practice of Neural Therapy 9 Clinical Examination 10 Segments 11 Segment Diagnostics 12 Interference Field 13 Maxillodental Region 14 Neural Therapeutic Phenomena Part 3 Injection Technique and Indications 15 General Information 16 Head 17 Neck 18 Spine 19 Abdomen, Retroperitoneum 20 Joints Part 4 Indications and Therapy 21 Indications and Therapy 22 Head 23 Neck 24 Thorax 25 Abdomen, Small Pelvis, and Retroperitoneum 26 Spine and Pelvis 27 Extremities and Joints 28 Nerves 29 Vessels 30 Lymphatic System 31 Skin 32 Tumors 33 Summary Part 5 Appendix 34 Literature