“…2 Trigeminal neuralgia, also known as tic doulourex, is usually of idiopathic nature but it may be a complication of HZ infection. 1,24 Carbamazepine is the drug of choice for the treatment of trigeminal neuralgia and is effective initially in 75% of cases. 2,25,26 Even though it has been reported that early administration of acyclovir will reduce the length of the cutaneous rash and the intensity of pain, 9,17,18,20,27,28 it has not been shown to result in a significant decrease in the incidence of post-herpetic neuralgia.…”