In my four decades of working with people with allergies I’ve seen many people heal themselves, with simple changes to their diet and lifestyle. Cutting out refined sugar and processed foods, and going onto eating whole grains, beans, vegetables, seeds, temperate climate fruits etc. can strengthen the mucous membranes. Then they can return to being the strong barrier they are designed to be, and keep the pollen, cat hairs, food allergies etc. out of the body. Then there is no need for the body to set off an immune response, and the inflammation etc
I have seen many people greatly reduce or eventually eliminate their hayfever. People may notice improvements in a few months, but often it takes going through the four seasons to substantially heal this condition.
Many people these days suffer if they eat gluten. However the main problem is not the gluten in food, but the weakened intestinal condition. Again i have seen many people make positive changes to their diet, and greatly reduce or heal their gluten allergy, and once again be able to eat moderate quantities of wheat, barley, rye etc. and not get symptoms like bloating and abdominal pain.
It may seem that the problem with allergies comes from the outside, but the reality is that it mainly comes from within us, and our over-sensitive response to airborne pollens or foods that we have been exposed to for thousands of years. The macrobiotic approach to healing allergies is basically to return to eating primarily local plant based whole foods, as most of our ancestors have done for millenia, to once again live in harmony with our environment, rather than having to fear it or fight it.