Coccidioidomycosis is a disease which can develop in cats if they are exposed to the fungus Coccidioides immitis. The disease is much more prevalent in dogs, but in some rare cases cats have become ill from this fungus. Most cases of coccidioidomycosis occur in the southwestern USA and Mexico.
Oral anti-fungal medications are administered in order to treat a coccidioidomycosis infection that is causing symptoms. The medications used are either ketoconazole or itraconazole. Ketoconazole is less expensive than itraconazole, but ketoconazole can cause side effects. Either of the medications must be given once at day for between 6-12 months.