Curative effect of the nerve block combined with interference electrotherapy in the treatment of postherpetic neuralgia

Objective:To observe the effectiveness and safety of nerve block combined with interference electrotherapy in the treatment of postherpetic neuralgia(PHN).Methods:Sixty patients with PHN were randomly divided into the control group and observation group(30 cases each group).The control group was treated with oral pregabalin combined with corresponding intercostal nerve block,and the observation group was treated with oral pregabalin combined with corresponding intercostal nerve block and interference electrotherapy for 8 weeks.The visual analogue scale(VAS),and sleep quality score(QS) in two groups between before and after treatment were compared.Results:After treatment,the VAS score and QS score in two groups significantly decreased compared with before treatment(P<0.01),and the decreasing degrees of VAS score and QS score in observation group were more obvious than those in control group(P<0.01).The total effective rates in two groups were 100%,but the marked effect case in observation group was more than that in control group(P<0.05).Conclusions:Nerve block combined with interference electrotherapy can effectively relieve or remove the pain in PHN patients,which is simple,feasible,safe,and worthy of clinical application and promotion.