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Cannabis
Hemp oil (from *Cannabis sativa*) may trigger IgE-mediated allergy via seed proteins (e.g., **Can s 3**), though rare. Cross-reactivity possible with **Latex-Fruit Syndrome** or **Birch Pollen-Related Oral Allergy Syndrome** in sensitized individuals. Reactions range from mild oral symptoms to anaphylaxis; more common in raw seed/protein exposure than refined oil.
Symptoms
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Skin Rash or Hives
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Itching or swelling
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Nausea or Vomiting
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Abdominal pain or cramps
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Difficulty breathing or wheezing
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Runny or Stuffy Nose
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Watery or itchy eyes
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Anaphylaxis (severe reaction)
Healing & Prevention
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Avoidance of cannabis
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Antihistamines
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Topical corticosteroids
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Epinephrine auto-injector (for severe reactions)
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Allergy Testing and Immunotherapy
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Hydration and rest
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Cold compresses