II. Background
- Not a true coral
- Categorized as calcareous hydrozoan
- Small brush-like growth on rocks and coral
III. Symptoms
- Initial: Stinging or burning pain
- Later: Severe itching and Urticaria
IV. Course
- Pain resolves in 90 minutes (earlier if treated)
-
Urticaria flatten in 24 hours and resolve in 7 days
- May be hyperpigmented for up to 2 months
V. Management
- Treat the same as Jellyfish stings