Wasp sting was nearly fatal! Anything that triggers a serious allergic reaction calls for emergency treatment. Epinephrine saves lives.
Yellow jacket allergy can be life threatening.
Prednisone is a valuable medication for many serious conditions, but prednisone side effects can be serious, including sepsis and psychological reactions.
Some people have a mango skin allergy that results in an itchy rash similar to poison ivy. That is because mango skin contains urushiol, the offending agent.