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Hazelnuts
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Hazelnuts

Hazelnuts (tree nuts) contain allergenic proteins (e.g., Cor a 1, Cor a 8). Reactions range from mild oral itching to severe anaphylaxis. Common in nut-allergic individuals; often linked to birch pollen cross-reactivity (OAS).
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Hazelnuts

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Symptoms

  • Oral Allergy Syndrome (OAS)
  • Skin Reactions
  • Gastrointestinal Issues
  • Respiratory problems
  • Anaphylaxis

Healing & Prevention

  • Avoidance
  • Antihistamines
  • Epinephrine Auto-Injector
  • Allergy Testing and Immunotherapy
  • Emergency Action Plan
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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) Respiratory problems (13) Digestive issues (nausea, vomiting, diarrhea) (12) Dizziness (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) Read food labels carefully (10) Reading food labels carefully (10) Consulting an allergist (8) Cold compress (7) Topical Creams or Ointments (7) Dietary Substitutes (6) Education and Awareness (6) Topical Treatments (6)

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