Copper sulfate is an effective treatment and preventative for digital dermatitis when used in a footbath. Unfortunately, it’s also expensive, problematic to dispose of, and potentially toxic. The Winter 2016 issue of the Country Folks Cattle Production Guide details strategies for reducing copper use in footbaths, including:
Good hygiene practices to keep hooves dry and reduce potential cross-contamination
Footbathing intervals based on current leg hygiene and production stage
You can read the entire article here.