I've never heard of it either. I would like to know more about it as well.
Sorry everyone I got so busy with the holidays just popped in for a minute. Well I am on day 7 of this and I feel pretty good. It would take a long time to explain for me and I don't think you can post links to other websites here but just google LDN or low dose naltrexone and there is a website for it and a message board. I have now found several dozen people taking it for auto immune and nine people with lupus using it. THere is also a lot of talk about it on the healing well chrons forum if you want to look there.
If you would like me to explain more pm me so I don't have to bother the people here who don't want to know about it.