Signs and symptoms of anaphylaxis include:

• Skin reactions, including hives, itching, and flushed or pale skin
• Swelling of the face, eyes, lips or throat
• Constriction of the airways, leading to wheezing and trouble breathing
• A weak and rapid pulse
• Nausea, vomiting or diarrhea
• Dizziness, fainting or unconsciousness

Some common anaphylaxis triggers include:

• Medications
• Foods such as peanuts, tree nuts, fish and shellfish
• Insect stings from bees, yellow jackets, wasps, hornets and fire ants

If you've had any kind of severe allergic reaction in the past, ask your doctor if you should be prescribed an epinephrine autoinjector to carry with you.