| Name | Description |
|---|---|
| Expectorant | An agent that increases bronchial secretion and facilitates its expulsion. |
| Facial paralysis | Paralysis of the face. |
| Fainting | Extremely weak, threatened with loss of consciousness. |
| Fatigue | A state characterized by a lessened capacity for work and reduced efficiency, usually accompanied by a feeling of wariness, sleepiness or irritability. |
| Febricula | Simple continued fever. |
| Febrifuge | A remedy for fever. |
| Felon | Whitlow. |
| Fence posts | poles that take root as live trees when placed in the ground. |
| Firewood | wood that burns when green. |
| Fistula | A pathologic sinus or abnormal passage leading from an abscess cavity or a hollow organ to the surface, or from one abscess cavity or organ to another. |
