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Acute sinusitis; Chronic sinusitis 

American Coneflower; Black Sampson; Comb Flower; Echinacea angustifolia; Echinacea pallida; Echinacea purpurea; Hedgehog... 

Sinusitis is inflammation, either bacterial, viral, allergic or autoimmune, of the paranasal sinuses.

The purple coneflower, Echinacea purpurea, is a drought-tolerant perennial of the flowering plant Family Asteraceae and native to North America. It has daisy-like purple flowers arranged in a large cone-shaped head.