Ringworm spreads rapidly in multi-cat environments and requires systematic treatment. Understanding eradication protocols prevents prolonged welfare harm to affected animals.
Ringworm eradication in multi-cat households requires sustained effort over months, and the cats experience significant welfare burden from the treatment process itself - repeated handling for dips, oral medication, and the physical discomfort of lime sulfur application. The welfare calculation requires committing to complete eradication rather than partial treatment that prolongs the episode indefinitely. The welfare harm of inadequate treatment - ongoing fungal skin disease, persistent household contamination, and human exposure - exceeds the welfare cost of thorough treatment. Welfare-positive ringworm management commits to the complete protocol from the outset rather than attempting abbreviated treatment that requires starting over when relapse occurs.