My daughter has a 7-month old steer for her school's FFA program that she's going to show at the fair but unfortunately it started with some blister looking around his neck and now it's spread and grown to big lumps inside and around the ears. I heard some someone when the thing around his neck started, that it could be ringworm. Not sure what it is or how to treat it. If any one have experiences and/or ideas that could help, we would greatly appreciate it. TIA.