Pimples around the ears may be caused by fire in the kidneys or fire in the liver and gallbladder.
From the perspective of Chinese medicine, the kidneys open the orifices in the ears, and the ears correspond to the kidneys of the human body. Unhealthy habits or chronic diseases consume kidney yin for a long time, causing kidney yin deficiency and yin deficiency and fire, resulting in symptoms such as hot flashes and night sweats (abnormal sweating after going to sleep and stopping after waking up), soreness and weakness of the waist and knees, dry mouth and tongue, dry throat, and pimples on the ears.
In addition, the meridians of the Gallbladder Meridian circulate, with its branches branching out from behind the ear, entering the ear, and exiting in front of the ear. Liver qi stagnation, depression and fire, spread to the gallbladder, gallbladder dysfunction, gallbladder fire inflammation, through the meridian, can cause bitter mouth, two coercive pain, upset insomnia, pimples on the ears, yellow urine, constipation and other symptoms.
It is recommended to consult a professional Chinese medicine practitioner for the symptoms of pimple on the ear, rather than guessing and using medication on your own to avoid harm.