It is REALLY IMPORTANT to make sure you follow your doctor's orders about taking your medication.
You can go on the most fantastic kidney diet, but without the proper medication, you are risking permanent damage to your kidneys, which means that you are at a higher risk of dying. I think that Lupus Nephritis is a little different to other kidney diseases, but someone more knowledgeable will be able to give you the correct advice.
I am giving you the link for the kidney nutrition page of the Australian Kidney foundation. If you cannot access the web site because you are in another country, let me know and I will paste the information here.
What medication has your doctor put you on for Lupus Nephritis?
Diagnosed with Lupus - 22 June, 2010