You may want to go with more of an anti-fungal/antibacterial cream.
I mix up anti-fungal athletes foot cream and triple antibiotic cream together and use it for thrush and any skin problems. If nothing else use something like Tricare 3-way ointment or Swat. They are an antibiotic that will also keep flies away.
"Until one has loved an animal, part of one's soul remains unawakened..."
- Anatole France