Earwax, or “earwax” as it is commonly called, is a substance that is secreted by the glands of the external ear canal, which protects the external ear canal from the growth of bacteria. A small amount of “ear wax” is good for us. Also, the “ear wax” in the external ear canal can be eliminated by itself, so normally no special treatment is needed. Occasionally, however, itching in the ear canal may be caused by earwax. This is why many people like to clean the earwax from their external ear canal by themselves with an ear picker. In addition, some people like to use ear scoops or cotton swabs to clean the water in the outer ear canal after bathing or swimming, thinking that this method is particularly comfortable. In fact, there are many hidden dangers in doing so, but they are not taken seriously. Wet earwax is also known as oily earwax. This kind of earwax is not easy to clean inside the external ear canal and is often produced at a high rate. This kind of “earwax” is not easy to clean inside the external ear canal, and it is often produced at a relatively high speed, so if it is left untreated for a long time, it is easy to focus together. Many people use an ear picker to clean up the earwax, but instead of cleaning it out, it causes damage to the outer ear canal wall, leading to otitis externa and even tympanic membrane perforation. Therefore, if you have oily earwax, you should visit the ENT department of a hospital regularly and ask your doctor to help you deal with the earwax in your external ear canal. If you feel itchy in the ear canal, you can rub your hand gently on the outside of the ear or use a clean cotton swab to clean the ear, but you should be careful not to go too deep, otherwise the cotton from the swab will fall into the outer ear canal and form a foreign body in the outer ear canal.