nerve near one of your ears and causes painful red rash with fluid-filled blisters on the ears.
To rule out this possibility and initiate an early management, I suggest you an immediate doctor’s evaluation.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.