My eczema is food-related, no question. I have found, however, that the right moisturizer can help relieve the symptoms of histamine intolerance. I've tried lots of difference products, from aloe body butter to coconut oil. There are lots of options that can be helpful, but in my trials the very best (no contest) is emu oil.
I've been getting pure emu oil from my neighbourhood waxing specialist at WAX!T. She also does great brows, but that's beside the point.
Emu oil boasts a number of benefits such as being anti-inflammatory, providing natural pain relief, and offering a natural sources of omegas 3, 6, and 9. For me, it moisturizes more deeply than anything else I've tried. And although the real answer is food, emu oil seems to allow me to push my food limits a wee bit.