Anxiety always seems to make allergy reactions feel worse, so anything that helps reduce anxiety will also likely help reduce how bad the allergies make you feel. I used to get anxiety real bad when I'd get an asthma attack, but now I know how to handle the asthma so it doesn't freak me out anymore. I also get anaphylaxis from some forms of sulfite preservatives, but because I know how to deal with the anaphylaxis before it gets too bad, again I don't get so freaked out about it any more.
Also, you might consider looking in to oral desensitization treatment (more commonly available from Naturopathic physicians or Environmental Medicine specialists).
Good luck & take care,
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Pancytopenia, chronic malabsorption/malnutrition, etc.; G-Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, IV Ceftazidime, Heparin (to flush PICC line), Claritin, Colloidal Silver (used topically), probiotics, homeopathy.