ABSTRACT - 592483 The disclosure relates to a method for treating an animal that has or is at risk for one or more infectious diseases of the hoof, wherein said infectious disease comprises an open lesion on the lower leg and/or hoof area of said animal, said method comprising: administering to a lower leg and/or hoof area of said animal a composition that is substantially free of copper and zinc, said composition comprising at least one aldehyde selected from glutaraldehyde and glyoxal in an amount of about 5% to about 30% by weight, and wherein the composition comprises an effective amount of said aldehyde such that if an animal has the one or more infectious diseases, the composition causes formation of a scab over the lesion； wherein said composition may further comprise about 5% to 20% by weight of at least one quaternary ammonium compound； about 0.03% to 3% by weight of at least one poly(alkylene glycol) alkyl ether； about 0.03% to 3% by weight of at least one gelling agent； about 0.03% to 3% by weight of at least one antimicrobial essential oil or active thereof； and about 0.03% to 5% by weight of at least one surfactant.
