Patients with yellow water inside the ear mainly consider two diseases: first, purulent otitis media; second, eczema of the external ear canal. If it is caused by otitis media, the main application is amoxicillin clavulanic acid potassium tablets, along with chloramphenicol ear drops or levofloxacin ear drops, both of which can effectively play an anti-inflammatory and anti-swelling role. You can also use boric acid solution to repeatedly rinse the external ear canal, which will also have a significant auxiliary therapeutic effect on the case of yellow water. If it is due to eczema, make sure to keep the ear canal clean and avoid getting water. Rinsing with boric acid solution first and then applying Denide cream can effectively reduce the yellow water inside the patient’s ear canal and will also reduce the itchiness caused by eczema, and the patient’s condition will improve significantly after active treatment. If you do not see any improvement, you need to go to the hospital.