When patients have oily ears, they will repeatedly produce cerumen containing more oil in the ear canal. The patient should avoid eating spicy and stimulating foods that can cause fire, and should not eat too much fishy food, and should avoid drinking too much alcohol to avoid increased secretion of cerumen in the external ear canal. The first thing you need to do is to use a cotton swab containing alcohol to degrease the ear canal. If there is too much cerumen, you can go to the hospital for further cleaning to keep the ear canal clean and clear.