MY CATS EAR HAS BEEN GRADUALLY SWELLING FOR THE LAST FOUR DAYS . I THOUGHT THAT IT WOULD GO DOWN OR HEAL ITS SELF , TONIGHT THO HIS EAR IS SWOLLEN TO THE POINT THAT IT IS BLOCKING THE EAR CANAL AND APPERS THAT THE LIQUID IS FILLING UP AROUND THE BASE OF HIS EAR AND MAY BE SPEDING FARTHER DOWN HIS HEAD. CAN I USE AN INSULIN SYRINGE TO PUNCTURE IT SO IT WILL DRAIN AND RELIEVE PRESSURE