Hydrogen peroxide solution can be used to wash the ears. Hydrogen peroxide solution, commonly known as hydrogen peroxide, can be used when washing the ears, but patients should not blindly use hydrogen peroxide, and should selectively use it according to the specific condition of the patient’s ear, as follows: 1. Patients with relatively clean ear canal, or only a small amount of debris-like or flaky cerumen masses, do not need to use hydrogen peroxide solution for cleaning, and can directly 2. If there is thick inflammatory secretion in the ear canal or even in the middle ear cavity, which is difficult to clean out smoothly, hydrogen peroxide solution can be used for decomposition and dilution, which will help to clean the ear canal and middle ear cavity more thoroughly and help to improve the inflammatory condition.