@marygrace, I am so sorry to hear about your sister's sudden hearing loss and subsequent tinnitus. Although I don't suffer from tinnitus myself, my husband struggles with it, and with worsening hearing problems. His tinnitus is from taking a daily aspirin and occasionally a dose of ibuprofen if he's overdone physically moving and lifting things. In my efforts to help him with it, I did some research on tinnitus and found that the thing thats works best is to learn to ignore the ringing in your ears. You may want to talk with your ENT to see if there are ways your sister can learn to ignore the ringing in her ears. If she was/is taking any medications they may be the cause or may make the tinnitus worse. Perhaps if that's so, she can request a medicine change from her doctor. I would imagine her recent hearing loss has made her focus on her ears more, so she may be acutely aware of all sounds or lack thereof thus increasing her notice of the tinnitus. This is just a guess on my part, putting myself in your sister's shoes. I hope you receive other information on Mayo Connect to help you help her. Your love and concern for your sister is apparent and admirable. Good luck, Gail B. Ledesma