Manual Expression of Abscess Contents
The term you're looking for is manual expression or manual compression of the abscess cavity, though it's also commonly referred to as "milking" the abscess in clinical practice.
What This Technique Involves
Manual expression refers to the physical compression and manipulation of the skin and subcutaneous tissues surrounding an abscess cavity after incision to evacuate purulent material. This is performed by applying pressure around the abscess margins to express remaining pus through the incision site 1.
Clinical Context and Technique
When performing incision and drainage (I&D) of cutaneous abscesses:
- The primary goal is complete evacuation of purulent material through an adequate incision
- Manual expression/compression of the surrounding tissues helps ensure thorough drainage of loculated pockets
- This "milking" action mechanically expresses residual pus that might not drain spontaneously
- The technique involves applying firm pressure from the periphery toward the incision site
Important Evidence-Based Considerations
Current guidelines strongly recommend incision and drainage as the definitive treatment for abscesses, carbuncles, and large furuncles 1. However, the post-drainage management has evolved:
What NOT to Do:
- Avoid routine packing of the abscess cavity - recent evidence shows packing causes more pain without improving healing outcomes 1, 2
- Simply covering the surgical site with a dry sterile dressing is usually most effective 1
When to Add Antibiotics:
Antibiotics are recommended as adjunct therapy when 1:
- Signs of systemic inflammatory response (fever >38°C, tachycardia >90 bpm, tachypnea >24/min)
- Markedly impaired host defenses
- MRSA-active antibiotics should be used when systemic signs are present
Modern Alternatives:
- Loop drainage technique (LDT) offers smaller incisions with better cosmetic outcomes 3
- Ultrasound-guided needle aspiration has poor success rates (only 25% overall, <10% with MRSA) and is not recommended 1
The manual expression or "milking" technique remains a standard component of proper I&D technique to ensure complete evacuation of the abscess cavity.