Stack #121029
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| Flap 1 |  |
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| Flap 2 |  |
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| Purulent | Thick, yellow, and sticky bacterial infected white cells. |
| Fetid | Foul smelling |
| Mucoid | Thick and clear, normal for someone who has an airway disease. |
| Muco-purulent | Purulent and Mucoid combined |
| Green | Old infection or infection related to alergies. |
| Green and fetid | Pseudamonas |
| Brown | Old infection |
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