Inflammation would make since.
I suppose there could be many things going on within her body..the question would be what could be causing the inflammation within her body? She is in her 60's. I was thinking about it today, and I wander if a homeopathic detoxification kit like Heel Detox, may help get rid of some of the impurities in her body that is causing her so much distress with being allergic to everything?