Symptoms of a severe allergic reaction include:

• itchy, blotchy, raised rash called hives
• feeling dizzy or faint
• trouble breathing, including wheezing
• trouble swallowing
• tightness in the throat or chest
• nausea, vomiting, or diarrhea
• stomach cramps
• swelling of the lips, tongue, throat or another part of the body
• red, watery eyes
• sense of doom
• hoarse voice.
• loss of consciousness, even death.