Acute pain is mainly due to optic neuritis, trigeminal neuralgia, Lhermitte's sign or dysesthesias. Trigeminal neuralgia (TN or TGN) is a long-term pain disorder that affects the trigeminal nerve. The anticonvulsants carbamazepine and oxcarbazepine are especially effective in trigeminal neuralgia. There are numerous pharmaceutical treatments for neuropathic pain associated with pudendal neuralgia. It may be beneficial in trigeminal neuralgia. Like oxcarbazepine, ESL has potential uses for the treatment of trigeminal neuralgia and bipolar disorder. For treatment of trigeminal neuralgia the procedure may be used repeatedly on patients. There are two main types&colon; typical and atypical trigeminal neuralgia. Steinem was diagnosed with breast cancer in 1986 and trigeminal neuralgia in 1994. The main symptom of occipital neuralgia is chronic headache. She suffered from neuralgia, migraines, indigestion, depression, colds and influenza. Post herpetic neuralgia uncommonly is associated with shingles in the mouth. In 2004, its use for treating postherpetic neuralgia (neuropathic pain following shingles) was approved. Multiple oral medications have demonstrated efficacy in relieving postherpetic neuralgia pain. Various "Tanacetum" species are used ethnomedically to treat migraine, neuralgia and rheumatism and as anthelmintics.