Stellate Ganglion Block for Headache Pain and Cognitive Impairment Associated With Long COVID Persisting Over 12 Months: A Case Report.

Most literature on SGB for PASC management concerns its ability to reverse sensory loss, rather than relieve chronic pain. This case report provides preliminary evidence supporting the effectiveness of SGB for managing pain and cognitive impairment in PASC. As PASC symptoms with longer durations tend to be less effectively managed with SGB, we speculate that chronicity of the patients' symptoms hampered SGB-mediated pain relief.