When conservative treatments fail to adequately control painful flare-ups, more aggressive options may be considered. Sympathectomy is a surgical procedure that damages or removes portions of the sympathetic nervous system to disrupt pain signaling. This commonly involves a lumbar sympathectomy to denervate the sympathetic nerves at the front of the lower spine that travel down the legs. https://logcla.com/blogs/402240/Erythromelalgia-Treatment-A-Patient-s-Perspective