I had full cranial radiation... When I was 26 after the full resection of a cancerous brain tumor. The side effects were bad, but it wasn't until 6 years later that I was hit with Tinnitus in my left ear. I was given steroid drops which seemed to help the hearing loss side of it. But, the ringing and hissing has only gotten worse over the years. It's maddening. Any advice would be highly appreciated! Thank you!