Hi, I Have A Crackling Noise In My Right Ear

Hi, I have a crackling noise in my right ear and I have no idea what it could be. I've never had this happen before. Its not dirty because I have boiled it out with peroxide twice now. But it sounds a lot like it does when the peroxide is boiling in my ear. What is causing this? Its driving me crazy. lol! Thank you for your time.
Terri Y