Can a person have anaphylaxis and survive without medical treatment (presuming medical treatment isn't available)?

Yes: Untreated anaphylaxis is survivable, but the rate is much lower than with appropriated treatment

Yes: Anaphylaxis is only fatal in a small percentage of patients (1-2%). This is because anaphylaxis is a spectrum of reactions ranging from diffuse rash to shock that results in death. Prompt treatment is recommended because it is hard to judge how far and quickly the reaction will progress.

Yes: There are likely more people who have survived anaphylaxis than those who die from it. However there is no way to predict who will survive one. Be sure to have 2 epinephrine autoinjectors with you at all times if there is a history of anaphylaxis.

Yes: A person can survive. Death is usually from cardiac arrest, which is caused by the body's reaction to the trigger. Normal physiological "brakes" will reverse the reaction, but anaphylaxis is deadly because cardiac arrest can occur before the "brakes" go into effect. Even if survived, the next anaphylactic reaction to the same trigger can be even more exaggerated and the luck may run out