Scabbing in the ears

[ledel]

There is a young doe about six months old where I board my goats. She has these bumps inside both her ears there brown the same color as her skin and are like scabs. Are they eat mites? If so how would I treat it? If not what do you think it is and again how to get rid of it?

Thanks don't want whatever it is on my goat if if its something that can be spread all answers are appreciated!