Hi I received a TN diagnosis on Monday and have been given gabapentin. However how long does this take to kick in its Thursday now and I know I'm being impatient but I am in agony I could rip my cheek off with talons and I'm sure it wouldn't hurt this much!!! I'm anxious as anything about the diagnosis as I according to my dr am very young to have TN so he wants to do an MRI for MS am scared stiff and I can't even clean my teeth or wash my face ( sorry to share) can someone reassure me that this pain will ease some time soon ????????????