Forgive me for reintroducing this subject , 
    I seem to recall there was discussion on this a while back....I purchased a 
    mare at an auction recently coming from'' the wets of Washington state''and 
    she has scratches on all four legs up to knees and 
    hocks, I had the vet out as she is in foal 
    and wanted her examined, he suggested
    Benadyne scrub daily, I have done this for a 
    week , but no changes I can see...is there a better approach to this problem 
    ? It is stubborn !!! Any home or good `ole farm remedies ? Thank 
    you    Sherrie McClain and FS Radar, now Jesta Barpasser with 
    bumpy legs....