Hey guys just approaching this from perhaps a slightly different angle. And its just food for thought.
Allergies are an immune response and immune function is deeply tied to your quality of living, i.e. stressors of any kind including diet, other illness, sleep and mental load. Theres no one thing at fault most often but a very complicated set of systems and interactions. It might not be easy but can you think back on your general quality of health when these allergic responses began? How have you been since otherwise, can diet or sleep be looked at, could total body inflammation be reduced to give the immune system a rest from being overreactive? these are some questions to think for yourselves. My wife is a nutritionist(which has gained me some new perspective) she has all sorts of extreme allergic reactions, but depending on the totality of circumstance and her ability to maintain wellness her reactions to known allergens will change.