Insoluble fibers have been helpful in inflammatory bowel disease. They increase fecal bulk which stimulates more normal motility from the intestine. Slower stool passage results which enhances water absorption. Adding oat bran to the hypoallergenic diet may be helpful. This is a type of cancer that produces chronic diarrhea or vomiting just as inflammatory bowel disease can.
Lymphoma is temporarily responsive to prednisone but the response is short-lived.
Exposure to prednisone will make the lymphoma much more difficult to diagnose should biopsies be obtained later. Plus exposure to prednisone can lead to resistance to other medications. In short, if one tries prednisone without confirming a diagnose, one an cause some harm should a lymphoma be present instead.