Neck Nerve Hydrodissection with Dextrose for Jaw and Neck Pain Relief

INTERVENTION: Intervention1: Superficial cervical plexus hydrodissection with 5 percent dextrose: Superficial cervical plexus hydrodissection will be done under ultrasound guidance with 10 ml 5 percent dextrose once. A repeat procedure will be performed if the NRS pain scores increase to more than 5 Control Intervention1: Superficial cervical plexus hydrodissection with 2 percent lidocaine: Superficial cervical plexus hydrodissection will be done under ultrasound guidance with 10 ml 2 percent lidocaine once. A repeat procedure will be performed if the NRS pain scores increase to more than 5. CONDITION: Health Condition 1: G549‐ Nerve root and plexus disorder, unspecified PRIMARY OUTCOME: Severity of pain on the basis of NRS ScoreTimepoint: 2 weeks ; 1 month ; 3 months ; 6 months post‐procedure SECONDARY OUTCOME: Reduction of analgesic usage ; Percentage pain relief ; DSM ScaleTimepoint: 2 weeks ; 1 month ; 3 months ; 6 months post‐procedure INCLUSION CRITERIA: Patients more than 18 years of age with submandibular pain not responding to medical management will be included in the present study