Most ear washes are made of hydrogen peroxide. Prepare medical hydrogen peroxide, cotton ball, drip pot, purified water and volumetric flask. Mix medical hydrogen peroxide and purified water according to the ratio of 1: 3, mix in a volumetric flask, slowly pour into the volumetric flask, shake well, and let stand for about half an hour.

The smell of ears may be ear mites, and whether there are dark brown stains will reappear soon after cleaning. The water to wipe the stain is similar to blood, but it is ear mites. Pet shops sell ear mite syrup, and the prices of different brands vary a lot.

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Dogs' ears are easy to hide dirt, and ear hair will seal the ear canal, leading to mold and bacterial infections and even hearing loss. Therefore, it is necessary to clean the dog's ears regularly. If it is a long-haired dog, the inner ear hair should be pulled out first, and then cleaned to prevent the ear washing liquid from flowing into the ear canal. If it is not cleaned thoroughly, it will cause infection.

If not, it's because he hasn't cleaned the ear canal for a long time. It's best to cover his ears with cotton balls to prevent water from pouring in. After washing, use a cotton swab with ear fluid to clean up the stains in your ears.