Acai berry allergy

I am grateful to those who posted allergy information about acai berries on this site.  I am experiencing itching, raised blister-like rash and swelling on my face (especially around the eyes), rash in groin,and under my breasts.  It started with itchy fingers, but no rash.  I was given Brookline dark chocolate acai and blueberry candy bought at Costco.  It was delious, and I ate four packets over two days.  I had one unexplained diarrhea episode, but thought it was from new Chinese restaurant. Now I think it was from the acai.   I have known allergies to poison icy (severe), mangoes, and cashews (mild).  I will avoid acai going forward. I think I will let Costco know that they might want to post an allergy alert.

[allmymarbles]

People can be allergic to any plant or animal food. Should Costco post an allergy alert for every food item it sells?