Hi, Doctor I had a few years back suggested I use one also. The full spectrum light's are not cheap so I didn't purchase one. I do think it would of help me though, I was lucky enough to live where there was some sun in the winter so on nice days I would bundle up and just sit outside and let the sun hit my face for 20 minutes,that did help! Your Dr. may know of someplace to purchase one less expensive ask him, I would. Because just any old light will not work. I wish you well.