Dr. Preziosi deals with diseases affecting the skin, ears, and gastrointestinal system. This can range from allergies to endocrine diseases, resistant infections, congenital skin disorders, autoimmune skin diseases, unusual infectious diseases, and some skin cancers.

To diagnose these various disorders, Dr. Preziosi may employ skin or ear cytology, culture of the infection, blood work, or skin biopsies. Treatment of skin cancer is usually limited to cutaneous lymphoma, melanoma, and select cases of mast cell tumors. For allergies, she will help clients through food trials or if appropriate, perform intradermal skin testing and formulate allergy serum based on the results. 

Dr. Preziosi is available for consultation on using serum test results or can make up an allergy serum that reflects the local allergens. For dogs with chronic ear disease, she will often be able to clear the disease using a combination of long-term treatment, deep ear flushing using video otoscopy, and diagnosis of the underlying cause.