I am about to have food intolerances check out after living with a post nasal drip & severe eczema.

There was a great book I was told to read first, called "friendly food", my local library had it. It explains how lots of the food adds up together to cause a reaction, and you look for 1 thing and won't find it, but it's the combination of them that causes it. I know I react to soy, which has natural MSG, and stock powder also does - so put that together and that might be your trigger.

Read the book, it is worth it.

The only way to look for intolerances (not allergies, which skin pr*ck testing finds, but won't tell you intolerances) properly is a total elimination diet & add them back in slowly. I'm seeing the specialist in Sept (called in Feb for an appointment), so it will be like 4 weeks of hell, but my ENT said he is the only one in Melb who does it because it is really hard to find the culprit and most dr's & patients find it too hard and too much work. If I didn't have 7 years of living with this skin (and I wanted to do the diet on my son anyway, but couldn't cope with how disruptive it would be, and I think DD reacts to kiwi, so 3 of us will gain from it), I wouldn't bother.

the book really made me aware of how much stuff I thought was ok (like cucumbers for crying out loud) can add my adding up to my problems