Fungus???

Sebastian has had a fungus in his ears since I got him.  They are called Aural Plaques which is a type of flat wort.  The have gotten worse in the past couple of days Rob says.  He can barely get the halter on Bastian and when he does Bastian consitantly shakes his head tryin to get it off.  I called Dr. Banner from Edisto Equine Clinic and she said for me to try and get out there tomorrow to take a look at it and then call them.  So I think I'm gonna be schedulin and appointment with them here real soon.  But does anyone know anythin about these Aural Plaques?