STINGING INSECT ALLERGY What Is an Insect Allergy? An insect allergy develops because your immune system overreacts to an insect sting. The first time you are stung, your body produces a protein known as immunoglobulin E (IgE) antibody, specific to the venom that was injected when the insect stung you. If you are stung again by the same kind of insect, the venom will react with the IgE and activate the release of histamine and other chemicals, launching an allergic reaction. A serious insect allergy can result in a life-threatening condition called anaphylaxis, which can affect your whole body. If you have had a relatively severe local reaction to an insect sting (for example, a larger area of swelling around the sting that persists for days or weeks), you may be sensitized to the insect venom and at risk of an anaphylactic reaction if you are stung again. Anaphylaxis is a medical emergency that requires immediate medical treatment. You should contact emergency personnel if you have symptoms of anaphylaxis, which may include: Widespread hives Severe itching and swelling of the entire body Chest tightness Problems breathing Swollen tongue or throat, or both Dizziness Fainting Stomach cramps Nausea Diarrhea Decreased blood pressure Cardiac arrest Prevention Learning what stinging insects look like (yellow jackets, wasps, bees, and others) Knowing where stinging insects reside (for example, in walls, hollow trees, nests, hives) Hiring a trained exterminator to destroy hives and nests around your home Remaining calm when you see a stinging insect, while moving slowly away Avoiding wearing brightly colored clothing or perfume when outdoors, which can attract a stinging insect Taking care when eating or drinking soda or juice outside Wearing closed toe shoes outdoors Not wearing loose-fitting clothing when outdoors Treatment Allergy shots (immunotherapy) to help desensitize the patient to insect venom. Carry a self-injectable epinephrine pen at all times, which can be used as a short-term treatment in the case of an anaphylactic-type reaction.	-->