One of my dogs (an english bulldog) has a very swollen ear flap for some reason. I cannot find a sting mark, but I did adminster benadryl just in case it is insect related. I also haven't noticed extreme head shaking or any head shaking for that matter, but its possible she did earlier in the day which I didn't see and has ruptured a blood vessel. Its not bruised looking like there is blood pooled in her ear flap so I'm not sure if thats it. If the benadryl doesn't relieve I am thinking of draining it. I have some new unused syringe needles that would probably work to drain it I'm sure. Has anyone done this and have any tips? Good idea, bad idea etc.