Primary thrombocytopenia is treated by immunosuppressive therapies, such as prednisone, which your dog
is currently on. Right now we do not know whether your dog
has primary or secondary thrombocytopenia, that is why your vet has tried treating with both an antibiotic and with prednisone.
Secondary causes for thrombocytopenia include: autoimmune disorders, Infectious agents such as: Fungal diseases, Viral diseases, Bacterial diseases, Rickettsial, Protozoal , and Parasitic infections.