Check the complete list of side-effects of medications at http://www.rxlist.com/ - this website makes the drug package insert available for free online. If E. Nodosum is listed as a side-effect (even if it is considered rare), then you should print the side-effects list and show the list to the doctor.
Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD (Lupus?), Osteoporosis, Anemia, T- & B-Cell Lymphopenia, malabsorption/malnutrition, Lyme Disease (Igenex Lab IgM WesternBlot positive/CDC negative), etc.
Meds: Pulmicort, Injectable Vitamin B12, Herbs, Nutritional Supplements, Homeopathy.