It's possible you'll listen to a popping or cracking audio throughout the adjustment. It’s nothing to worry about. What you hear may be the sound of gasses like oxygen and carbon dioxide releasing out of your joints. You shouldn’t feel any pain in the course of the adjustment. Radiofrequency ablation. https://www.theorthopaedicandpainpractice.com/alleviating-aches-exploring-lower-back-buttock-pain-relief-solutions-in-singapore/