Allergic reaction to insect bite means hives or what else?

Allergy to insect bi. Most of the allergies to insect bites caue local reaction and itching.But some people have severe reaction to insect bites and stings especially bee stings.This is a life threatening allergic reaction and is called anaphylaxis, this can cause breathing difficulty and is an emergency.Need to be treated with Epipen (epinephrine) injection and emergency treatment.