An e.n.t. physician thinks my 2.5 year old daughter has cat scratch disease, due to signs of fever and swollen lymph nodes. how serious is this, and is there a treatment plan for it?

Often Self Limited: Cat Scratch Disease (CSD) is swelling of the lymph nodes caused by a bacterial infection from a scratch or bite of a kitten or cat. It is mild in most kids. Sometimes there is fever (usually less than 101°F or 38.3°C ), fatigue, loss of appetite, headache, rash, sore throat, and an overall ill feeling. CSD is not contagious from person to person. Most cases resolve without any medical treatment.