三叉神经痛与带状疱疹后神经痛(trigeminalneuralgia&post-herpeticneuralgia,TN&PHN)Hereisapieceofarticleextractedfromhealth&diseaseinformationonJuly13,2006NeuralgiaNeuralgiaissharp,severe,shootingpainalonganerveorgroupofnerves.Thepainofneuralgiausuallycomesandgoes.Neuralgiacanaffectadultsofanyage,althoughsometypesaremorecommonaftermiddleage.Neuralgiaiscausedbyirritationordamagetoanerve,althoughthecauseoftheirritationisoftennotknown.Thetypeofneuralgiathatoccursdependsuponwhichnerveisaffectedandthereasonitisirritated.Irritationcanbecausedbyaninfection,suchastoothdecay,theherpeszostervirus(shingles),ornasalinfections;eyestrain;systemicdiseases;arthritis;exposuretocold;apinchednerve;injury;orevenpoordiet.DiagnosisTodiagnosisneuralgia,yourdoctorwilltakeacompletemedicalhistoryandperformaphysicalexamination.Heorshewillsuspectneuralgiabaseduponthelocationofyourpainanditscharacteristicsymptoms.Yourdoctorwilllookforanunderlyingcauseofyoursymptoms.Forexample,ifyouhavefacialpain,yourdoctorwillevaluateotherpossiblecausessuchasproblemswiththejaw,teeth,orsinuses.Heorshewillalsocheckwhetheratumororaneurysmisputtingpressureonanerve.TherapiesAntiseizuredrugs,suchascarbamazepineandphenytoin,areoftenusedtosuppresspainassociatedwithglossopharyngeal,trigeminal,andpostherpeticneuralgiasbecausetheyslowdownthenervesignalsatcertainnerveterminals.Postherpeticneuralgiacanalsobetreatedwithantidepressants,topicalpainrelievers,transcutaneouselectricalnervestimulation(TENS),oradrugcalledcapsaicin.Insomecases,thenervecanbedeadenedwithgammarays,radiofrequencywaves,orglycerolinjections.Thenervecanalsobecutorpermanentlydestroyed.Ifneuralgiaiscausedbyanarteryortumorcompressingthenerve,orapinchednerve,surgerymaybeneededtofreethenerve.AlternativetreatmentsincludeB-complexvitamintherapy,acupuncture,andherbalremediesthathavebeenfoundtohaveanti-inflammatoryeffects.Self-caretipsAlthoughthereisnowaytopreventneuralgia,youcantakestepstoavoidattacksifyouknowwhattriggersthem.Forexample,ifyourpainisinth...