There are several procedures for treating aural hematomas; the veterinarian's approach to the problem will depend on the severity of the dog's condition. One method for correction -- which requires that the dog be sedated lightly -- is placing a drain, called a teat cannula, securely into the tip of the ear and allowing the ear to drain from the cannula for a period of three weeks. The ear eventually seals back together as the owner "milks the fluid" from the hematoma through the cannula each day.
Another method, performed under general anesthesia, involves making a surgical incision into the swelling on the ear, allowing the fluid to drain. Then, multiple sutures will be stitched into the ear to seal it back together. Approximately seven to 10 days following the procedure, after the ear has drained and healed fully, the sutures will be removed.
Failure to treat a hematoma can lead to enlargement of the swelling to encompass the entire earflap. Also, scar tissue formation within the hematoma will result in a severely wrinkled, thickened earflap that will predispose the dog to further ear problems.