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Red 40
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Red 40

Red 40 (E129) is an azo dye linked to rare cases of urticaria or asthma in sensitive individuals, though not classified as a true IgE-mediated allergen. More commonly associated with intolerance or ADHD-like symptoms in children.
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Red 40

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Symptoms

  • Hives
  • Itching
  • Swelling
  • Asthma-like Symptoms
  • Headache
  • Hyperactivity (in children)
  • Digestive Issues
  • Anaphylaxis (Rare)

Healing & Prevention

  • Avoidance
  • Antihistamines
  • Topical Creams
  • Epinephrine (for severe reactions)
  • Hydration
  • Consult an Allergist
  • Natural Alternatives
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Top categories

Swelling (119) Anaphylaxis (115) Digestive Issues (113) Hives (99) Itching (95) Difficulty Breathing (84) Skin rash (62) Diarrhea (58) Nausea (55) Abdominal Pain (51) Skin Rash or Hives (46) Headache (44) Respiratory Symptoms (43) Oral Allergy Syndrome (OAS) (40) Skin Reactions (36) Nausea or Vomiting (34) Itching or Tingling in the Mouth (33) Anaphylaxis (Rare) (23) Anaphylaxis (severe reaction) (22) Fatigue (22) Swelling (angioedema) (22) Difficulty breathing or wheezing (21) Vomiting (21) Gastrointestinal Issues (18) Anaphylaxis (Severe Allergic Reaction) (17) Dizziness or Lightheadedness (17) Swelling of lips, face, or throat (16) Digestive issues (nausea, vomiting, diarrhea) (12) Dizziness (12) Respiratory problems (12)

Top tags

Antihistamines (214) Epinephrine Auto-Injector (151) Avoidance (116) Medical Consultation (111) Emergency Action Plan (50) Consult an Allergist (48) Topical Creams (44) Reading Labels (41) Hydration (39) Hydration and rest (33) Topical corticosteroids (33) Emergency Care (30) Allergy Testing (28) Reading food labels (25) Dietary adjustments (22) Epinephrine (for severe reactions) (20) Emergency Medical Care (18) Epinephrine auto-injector (for severe reactions) (17) Probiotics (16) Consultation with an allergist (14) Read Food Labels (13) Allergy Testing and Immunotherapy (12) Reading food labels carefully (10) Read food labels carefully (9) Consulting an allergist (7) Cold compress (6) Education and Awareness (6) Topical Creams or Ointments (6) Avoidance of Allergens (5) Cross-Contamination Awareness (5)

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