Call 911 Now (you may need an ambulance) If

• Passed out (fainted)
• Wheezing or difficulty breathing
• Hoarseness, cough or tightness in the throat or chest
• Swollen tongue or difficulty swallowing
• Previous life-threatening reaction (not just hives or swelling) to sting
• NOTE: Symptoms above may indicate anaphylaxis. Anaphylaxis usually starts within 20 minutes, and always by 2 hours following a sting. See First Aid.