I had radiation 17 months ago in my brain. It was a NSCLC metastasis to the head. after the treatment, my left face and left fingers tip were little bit numb. I have been taking Tarceva oral tablets for the same period. recently, my left face is more number and the left fingers number , stiff and weak. I feel the numb ascend to the left elbow. The oncologist prescripted the Duloxetine. But I dont want to use the antidepressant drug. I not sure the Mecobalamin and galantamine or Neostinmine can use for my case? The MRI for my head two weeks ago conclusiont was stable . But it report that the extensive bilateral deep white matter T2 hyperintensities demonstrate mild interval progression consistent with history of radiotherapy. Plese give some advices Thank you! Linda