The allergist says Carolina's allergic reaction is either insulin or food. I am jerking and shaking inside trying to type this. Her prednison was decreased from 40 mg to 20 mg today. She took 10 mg twice today. Her hands are a little swollen now. I will wake her and give her benadryl throught the night. The allergist put her on zyrtec twice a day. She has taken one dose. Scared! Are some people allergic to human insulin and not animal insulin? Is there a long acting animal insulin?