I suffered many immune dysfunction symptoms over the last few years including angular cheilitiis, hhv7, raahes, yellow stools, etc etc.
Turns out imwas living in a water damaged building and getting exposed to the mood, bacteria, fungi and toxins there. The toxic stew found in water damaged building s can severley damage the immune system and caus systemic inflammation.
Im sure there are different causes for different people vur this is a major one for me. I notice that whenver im around mold my lips start to go pale and flakey again.
For more info see jackthraher.org, sickbuildingd yahoo group or the new shoemakwr book, surviving mold. Hoping thismhelps ease suffering for someone and maybe provides an answer