**Core Concept**
Septal hematoma is a collection of blood in the nasal septum, often resulting from trauma or nasal surgery. The treatment aims to evacuate the hematoma, restore septal integrity, and prevent potential complications like septal perforation, saddle nose deformity, or respiratory issues.

**Why the Correct Answer is Right**
The correct treatment involves incision and drainage of the hematoma to prevent further complications. This procedure is typically performed under local anesthesia, and the nasal septum is then packed to control bleeding and promote healing. The nasal septum is richly supplied with blood vessels, and the hematoma can put pressure on the surrounding tissue, leading to further damage if left untreated.

**Why Each Wrong Option is Incorrect**
* **Option A:** Antibiotics are not the primary treatment for septal hematoma, although they may be prescribed to prevent infection.
* **Option B:** Debridement alone may not be sufficient to treat the hematoma, as it may not address the underlying cause of bleeding.
* **Option C:** Observation is not a suitable approach for septal hematoma, as it can lead to complications like septal perforation or saddle nose deformity.

**Clinical Pearl / High-Yield Fact**
It is essential to recognize the signs and symptoms of septal hematoma, including nasal obstruction, epistaxis, and pain, to prompt timely treatment and prevent long-term complications.

**Correct Answer:** C.