Can sympathetic nerve block procedure help/cure tachycardia/angina/vascular issues as well as pain that i've had after traumatic drug reaction?

Most of no use.: Synthetic nerve block had been successful, but I doubt that it will help in any of your conditions. I am not quite sure about if it will help in vascular issues as you have not specified about what veins and what kind of vascular problem, I also cannot answer about your traumatic drug reaction as you did not indicate what type of drug was involved and what kind of reaction.