The skin of the cartilaginous portion of the normal external auditory canal is lined with sebaceous glands, almost all of which have ducts opening into the lumen of the follicle. This secretion is minimal and generally does not constitute an overflow. When inflammation, metaplasia, or tumor occurs in the external auditory canal, a plasma, plasma-blood, or purulent discharge may occur. Then, how to prevent ear overflow from external auditory canal boils? Here is a brief introduction: 1, don’t dig your ears casually. After swimming, if there is water in the ear, you can turn your head sideways so that the ear is facing downward, hopping on one foot several times, pouring out the water in the ear to avoid inflammation. If there is earwax, it is advisable to remove it. And avoid humidity and other stimuli, can prevent the disease. 2, after the disease, such as in winter, can be stuffed with loose cotton balls in the mouth of the external auditory canal, so that the external auditory canal to maintain a certain degree of humidity. In this way, it is easy to rot, easy to detoxify and easy to heal. 3, the outer ear canal to keep dry and clean. When wiping away the dirt, do not be rough or repeatedly rubbing. In the early stage of the disease or when the boils are not mature, hot compresses can be applied on the outside of the ear. 3-4 times a day. 4.When sleeping, the diseased ear should be on the lower side, but be careful not to let it be pressed. 5.When the pain is heavy and unbearable, acupuncture points of Hegu, Neiguan and Shaoshang can be used to relieve pain. 6, at the beginning of healing, it is bound to produce a slight itching sensation, do not wildly scratch and pinch. 7, pay attention to deal with systemic triggering causes.