😰 2. Stress and Emotional Upset

• Stress releases histamine and other inflammatory compounds—even if you’re not “allergic” to anything.
• Often appears during exams, grief, or major life changes.
  

  💡 Fix: Mindfulness, deep breathing, or gentle exercise can reduce flare-ups.

💊 3. NSAIDs and Common Medications

• Aspirin, ibuprofen (Advil, Motrin), and naproxen can trigger hives—even if you’ve taken them safely before.
• Some blood pressure meds (ACE inhibitors) cause angioedema (deep swelling), which can accompany hives.
  

  💡 Fix: Talk to your doctor before stopping any med—but consider switching to acetaminophen (Tylenol) if appropriate.