Has he by any chance been using the sweetner "Splenda"? It will cause a rash, mostly on the face, and it has other side effects that are not well known. I suffered from them this past summer. Google Splenda side effects.
Becky
He recently began using another one I have because it's easier to pour than sugar. I've been going to a new doctor for bioidentical hormones and he said all artificial stuff is bad for us. Sweetner in particular!