For severe cases, ringworm treatment for dogs and cats may require veterinarians to prescribe the drug Griseofulvin. Although as with any other medications, Griseofulvin has side effects therefore close monitoring is done. Griseofulvin may also cause birth defects therefore it is not recommended for pregnant pets. Aside from treating the current infection, decontaminating the environment is also necessary to prevent recurrence.
Clotrimazole: Ringworm Treatment for Dogs & Cats - 1800PetMeds
You have a young cat that started out with itchy ears. Certainly, ear mites would have to be high on the list of possible causes. You said that she was treated for that. I’m assuming that the treatment was definitive and that she was re-evaluated afterward and that no mites were detected. You then said that she developed hard thick crusts on the rest of her body – her face, nose, toes and back, and that these glowed under a black light. Veterinarians use a black light (called a Wood’s lamp) to identify the best hairs to sample for performing a fungal culture for ringworm. You don’t mention if your veterinarian did an actual fungal culture and whether or not it was positive. Crusts and flakes on the skin can sometimes appear to be glowing under a black light, when in fact they are not glowing with the characteristic “apple green” color that suggests ringworm. Glowing hairs should not be assumed to be ringworm. Glowing hairs should be plucked and cultured for ringworm.
Ringworm Treatment for Humans, Dogs and Cats
This medication is highly effective in the treatment of ringworm but is available in capsules far too large to be useful to most small animals. This means that a special company called a must custom make the medication into a more useful size. Nausea is a potential side effect for this medication but probably the main reason it is passed by in favor of griseofulvin is expense. On the average, cats treated with itraconazole and nothing else were able to achieve cure two weeks sooner than cats treated with Griseofulvin.
Ringworm Treatment for Cats and Kittens - Cat Health Guide