“…Treatments for PHN include anticonvulsants such as pregabalin and gabapentin, tricyclic antidepressants, topical agents such as 8% capsaicin and anesthetics, and invasive therapies such as botulinum toxin injections and stellate ganglion blocks. 3 Although there are case studies of these effective PHN medications partially relieving PHI, there are no current specific treatments for PHI, and it may prove to be more difficult to manage than PHN-associated pain. For example, pregabalin is also effective in improving end-stage renal disease–associated pruritus, 4 and its ineffectiveness to alleviate our patient's pruritus may point to the complexity of her PHI.…”