The likely result of having been incorrectly diagnosed in the first place. Wrist pain may be referred from hypomobile joints between C5 and T3, with resultant irritation to nerve roots .This far more likely situation will create the same symptoms as the much more rare condition occurring with so called carpal tunnel syndrome. Mobilisation to the lower cervical and upper thoracic Wikipedia reference-linkfacet joints will free joints irritated by a protective response there, results are immediate and long term provided sufficient mobility is restored . Recommend CM.
Check for brachial dural tightness and release with ballistic stretches if required.