How do I get Hydrogen Peroxide out of my ear? I was having ear pain recently and then the next day, I had started hearing things lower pitched in the affected ear. Then I put hydrogen peroxide in my ear for the first time because my mom had suggested it and I decided to do it multiple times. My ear feels full and it's really hard to hear things out of this ear. Sounds don't sound lower pitched and there's no pain anymore, now it's just hard to hear people talk and it sounds like I'm covering my ear when I talk but I'm not.