Mud Fever?

My horse has crusty stuff on the back two fetlocks and has it on the front two legs just above the fetlock.   I have read that the crusty scabs should be removed and an antibiotic put on the areas and that sometimes an antibiotic, general, will help.   
Do you have any suggestions?  Thanks, Phyllis W.

Personally I totally disagree. The problem is not a fungus or bacteria but rather the body is trying to discharge something! Chemicals, dewormers, junk from commercial feed etc.

Please listen to the audio in the library section on thrush and white line disease. All this info still applies.  Also listen to the audio on “what to feed your horse”.