An aural haematoma is when blood accumulates between the skin and the cartilage of the ear. They usually appear on the inside of the point of the ear. This is most commonly from trauma or from excessive heat shaking which can occur as a result of an ear infection or the presence of ear mites. The treatment for aural haematomas is surgical. The haematoma is lanced and drained and the skin is adhered to the underlying cartilage to prevent recurrence. Without treatment the haematoma will become firm and eventually become a scarred cauliflower type mass. This type of treatment is not possible to do at home. Furthermore, your cat needs to be evaluated by a vet to investigate the possibility of an underlying ear disorder which may have contributed to the formation of the aural haematoma.
If you home treat a Aural haematomas your cat would be...
Old Question brought up by the robot and idiot Daisy Ellis