Hello,
I think they are helpful in not allowing the head shaking to worsen the pinna trauma but they don’t treat the underlying cause of the hematomas nor do they resolve the hematomas themselves. They are essentially just a pressure wrap. It used you still have to relieve the bleeding within the ear flap, prevent it from reoccurring and treat whatever caused it. If you don’t do this the wrap may actually worsen the ears. I don’t advise them as I think they can close in moisture and infection which might actually worsen the condition in some cases. Ear hematomas need a vet for treatment of the underlying cause first and foremost. The hematoma also needs to be treated. The wrap doesn’t do either.
Thank you for rescuing this kitten. I think your best bet is a visit to the vet. At this young an age, I would t want to assume anything- so a through exam and advice from them will get you going in the right direction. Thank you for loving this kitty????????