Hypersensitivity

(Hyper-reactivity, Over-sensitivity, Extreme sensitivity, Heightened sensitivity, Hyper-sensitiveness, Over-responsiveness, Hyper-responsiveness, Increased sensitivity, Acute sensitivity, Intolerance, Allergy)

Hypersensitivity is a heightened response to a stimulus, such as a drug, food, or environmental factor. It can manifest as an exaggerated immune response, skin rash, difficulty breathing, or gastrointestinal distress. It can develop gradually or suddenly and can range from mild to severe. Symptoms may include itching, hives, swelling, sneezing, coughing, difficulty breathing, abdominal pain, and nausea.