Postherpetic Neuralgia (PHN) is a condition in which pain arises following the healing of an outbreak of rashes or blisters from complication with the shingles virus. PHN is caused by a damaged nervous system as a result of the shingles virus. Shingles, which is caused by the chickenpox virus, causes the skin to emit a burning feeling that causes blistering and rashes. Patients may experience a sharp, burning, throbbing, and stabbing pain from PHN. Also, the skin will feel overly sensitive from the slightest touch to the subtlest breeze. People with PHN often complain about the temperature because their skin and body is so sensitive. Pain from PHN will normally last longer than three months and some patients may begin to find the affected area very itchy or even numb to the touch. Unfortunately, there is not a known cure, but Postherpetic Neuralgia can be treated to ease pain and improve symptoms over time.