Hi veed,
I'm sorry about your pet. Mange can be so difficult to treat!! I have my cat with ringworm, which also causes hair loss and it is also spreading. My cat doesn't seem to be itchy around the ears. So, would you describe for us how the skin looks? Is it dry, flaky, scaly, do you see scabs? Sometimes, the only symptoms for ringworm is hair loss in irregular patterns. Doesn't have to be circular spots. So, I'd pay attention to that.