This is from the Johns Hopkins Lupus Center website:
Melatonin and melatonin-containing supplements should be avoided in people with lupus and other autoimmune disorders because they may stimulate the immune system. In addition, people with these conditions should also avoid the prescription sleep aid Rozerem (ramelteon), because it mimics melatonin in the body. It is important that you understand the necessity of avoiding both melatonin and Rozerem, since sleep aids are often used to help people with fibromylagia and other conditions to attain normal sleep patterns.

They also mention garlic, alfalfa sprouts, and echinacea as stimulating the immune system.

Not sure if I can post links but if so this is it:
http://www.hopkinslupus.org/lupus-in...rmation/avoid/