Your skin could be trying to eliminate something that your down and out elimination organs aren't able to handle right now. It said that skin problems are a sign of an interrior condition ... alot of times the liver. Since you're already had a very negative bio-electric test done, I'd say get to work on that organ!!
Colon cleanse, kidney cleanse, parasite cleanse for 1 week, then do a liver flush ... set yourself up a schedule of every 2-4 weeks. Start reading on lymph cleansing and come to understand the importance of the lymphatic system and why alkaline eating is important. Look into the benefits of raw foods and begin incoperating as much as you can into your lifestyle.