I followed this posts suggestion (liver flushing)and my own problem has all but disappeared. I have known for years that my intestines produce too much heat (chapped lips are a symptom)and so am further motivated to pursue dietary changes as well as do my cleansing regularly. It is highly suggested to do a Liver Flush prior and post Master Cleanse and especially that you are still having detox symptoms (outbreaks on chin), this would suggest that you DO NEED further cleansing.
Relative to the post shared, I did the flushes, following the recipe given in the Curezone Liver Flush Forum which worked well for me. I have also used Somer's simplified flush which calls for a day of fresh squeezed apple juice and then at bedtime a half cup of olive oil with a cup of fresh squeezed grapefruit juice, followed by a SWF (Salt-Water-Flush) in the morning. The other flush I use calls for the use of Epsom Salts . It is more dramatic but since I am doing this flush more frequently, the less dramatic flush is fine for me.