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Postherpetic neuralgia (PHN) is neuropathic pain that occurs due to damage to a peripheral nerve caused by the reactivation of the varicella zoster virus (herpes zoster, also known as shingles). Typically, the nerve pain (neuralgia) is confined to an area of skin innervated by a single sensory nerve, which is known as a dermatome. PHN is ...
After it subsides, it stays dormant in nerve cells in the body. It may reactivate under conditions of physiological stress or if the immune system is suppressed in any way (for example during an illness or undergoing chemotherapy), resulting in herpes zoster , also known as shingles or Ramsay Hunt syndrome when facial paralysis in involved.
Neuralgia is more difficult to treat than other types of pain because it does not respond well to normal pain medications. Special medications have become more specific to neuralgia and typically fall under the category of membrane stabilizing drugs or antidepressants such as duloxetine (Cymbalta).
The painful infection is very common and often starts with a tingling feeling in the skin
Injecting local pain relievers and steroids into the injured area alleviates intercostal nerve pain. [2] In this type of nerve block, a needle inserted between two ribs releases a steroid into the area around the nerve. The exact location of injection depends on the underlying cause of the injury. After three to five days, the steroid begins to ...
Shingles is a condition caused by the same virus that causes chickenpox, the AAD explains. After you get over chickenpox, the virus stays dormant in your nerves and can reappear as a painful rash .
In some people, shingles can reactivate presenting as zoster sine herpete: pain radiating along the path of a single spinal nerve (a dermatomal distribution), but without an accompanying rash. This condition may involve complications that affect several levels of the nervous system and cause many cranial neuropathies , polyneuritis , myelitis ...
They are generally used to treat nerve brain that results from injury to the nervous system. Neuropathy can be due to chronic high blood sugar levels (diabetic neuropathy). These drugs also reduce pain from viruses such as shingles, phantom limb pain and post-stroke pain. [74]
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