60 CT patients, blindly divided into two groups. Both will underwent median nerve hydro-dissection using 1% lidocain followed by group I injection of Sodium hyaluronate and group II injection of 40 mg of triamcinolone acetonide, under ultrasound guidance. Baseline VAS pain and nerve conduction study, patient satisfaction, and therapeutic duration, will be determined in 2nd week, 3rd and 6th month after the procedure. US measurements of the median nerve cross-sectional area (CSA) in the CT inlet will be compared pre and post procedure in 6th month and use NCS results as the gold standard diagnostic test.