Thanks for sharing that. To give you the clearest guidance, I need a bit more information: what exactly happened after the 3 days? For example, did you experience pain, irritation, discharge, hearing changes, dizziness, or anything unusual in your ears?
Hydrogen peroxide is sometimes used in small amounts to help clean the ear canal, but it can also cause irritation, dryness, or even damage to the delicate skin inside the ear if overused. Once I know your symptoms, I can give you a careful assessment of what might be going on and what steps to take next.