This kind of ear infection can happen after any condition that keeps fluid from draining from the middle ear. These conditions include allergies, a cold, a sore.
What Causes Ear Discharge and How Do I Treat It? Middle ear infection (otitis media) is a common cause of discharge from the ear. Ear infections in the middle ear can cause fluid to build up behind the eardrum.
Ear infections are less common in adults than in children, but they may be more you may sense fullness in your ear and have some fluid drainage from the.