Background
- Often confused with allergy
- Most common cause is scrombotoxin in spoiled oily fish:
- Tuna, mackerel, bonito and skipjack
- Also known as Histamine Fish Poisoning (up to 25% of wt ingested may be pure histamine)
Clinical
Symptoms and signs include:
- flushing, urticaria, headache, palpitations, GI upset
- Onset minutes after ingestion and can last hours
Management
- Antihistamines
- Occasionally salbutamol
- Rarely epinephrine if ? anaphylaxis
- Histamine Fish Poisoning is a notifiable disease