Some chemo treatments side effects are high fever, such as INTERFERON, causes flu like symptoms. If not a side effect all patients with a 101.5 fever should contact doctor immediatley. You must find out all side effects, you can never take for granite it is something else. With this you don't have other chances if you are wrong.
INFECTIONS CAN BE DEADLY, Belive me I can testify. A lot patients fighting cancer lose their life by infections, not cancer. Chemo brings down the white blood counts(white fights off infections) after treatment the white counts can be extremely low and this is when the infection can jump in. In my situation it went to the heart causing endocarditis.