Cellulitis: Symptoms, Treatment, and Complications - Surgery

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Cellulitis, or蜂窩性組織炎, is a common and potentially serious bacterial skin infection that can occur after a break in the skin, such as a bite or scratch. In your case, the cat bite on your hand has led to this condition. Understanding the symptoms, treatment, and potential complications of cellulitis is crucial for effective management and recovery.


Symptoms of Cellulitis
The symptoms of cellulitis typically include:
- Redness and swelling: The affected area may appear red and swollen, often with a well-defined border.

- Pain and tenderness: The area may be painful to touch, and you may experience discomfort when moving the affected limb.

- Warmth: The skin over the infected area may feel warm to the touch.

- Fever: Although you mentioned no fever or chills, it is common for patients with cellulitis to experience systemic symptoms like fever.

- Pus or drainage: As you noted, the presence of yellowish-green pus and a small hole in the center of the wound indicates that there is an ongoing infection.


Treatment
The primary treatment for cellulitis involves antibiotics. Since you have been on antibiotics for four days, it is essential to monitor your symptoms closely. If there is no improvement or if symptoms worsen, it may be necessary to reassess your treatment plan. In some cases, intravenous antibiotics may be required, especially if the infection is severe or if there are signs of systemic involvement.


Complications
One of the significant concerns with cellulitis is the potential for complications, including:
- Abscess formation: This occurs when pus accumulates in a localized area, leading to a painful swelling that may require drainage.

- Osteomyelitis: This is an infection of the bone that can occur if the cellulitis spreads deeper into the tissues, particularly if there is involvement of the underlying fascia or muscle.

- Sepsis: In severe cases, the infection can enter the bloodstream, leading to a systemic infection that can be life-threatening.


Your Current Condition
Given your description of the wound being purple and raised, with surrounding hardness and pain upon pressure, there is a possibility of deeper infection, including involvement of the fascia or even the bone. The inability to move your middle finger could indicate swelling or infection affecting the tendons or muscles in that area.


Recommendations
1. Follow-Up: It is crucial to follow up with your healthcare provider, especially if you notice any worsening of symptoms, such as increased redness, swelling, or pain, or if you develop fever.

2. Imaging Studies: If there is concern for deeper infection, your doctor may recommend imaging studies, such as an ultrasound or MRI, to assess for abscess formation or osteomyelitis.

3. Wound Care: Keep the wound clean and dry. If there is drainage, it may be necessary to change dressings regularly to prevent further infection.

4. Pain Management: Over-the-counter pain relievers may help manage discomfort, but consult your doctor before taking any new medications.

In summary, while cellulitis can often be managed effectively with antibiotics, your current symptoms suggest that close monitoring and possibly further intervention may be necessary to prevent complications. Always communicate openly with your healthcare provider about any changes in your condition.