Protecting Your Skin: Wound Care and Surgical Risks

Managing the skin in PASH syndrome requires a delicate balance. Because your immune system is in a state of high alert, your skin can react to trauma by producing new inflammation rather than healing ^[1][2]. This response is known as pathergy, and it is the reason why standard surgical and wound care techniques must be carefully modified for you ^[3].

The Danger of Pathergy in Surgery

In a typical patient, a doctor might “lance” (perform an incision and drainage or I&D) a painful abscess to relieve pressure and infection. However, in PASH, this can be a major hazard ^[1].

• The Reaction: For someone with PASH, the trauma of the incision can signal the immune system to attack the site. What started as a simple abscess can sometimes quickly transform into an expanding pyoderma gangrenosum (PG) ulcer ^[1][4].
• Surgical Risk: This risk extends to all types of surgery, including biopsies and elective procedures for hidradenitis suppurativa (HS) ^[1]. In one small series of patients with both HS and PG, a high percentage developed a new PG ulcer at the surgical site following standard I&D ^[1].

Because of this, elective surgery is generally avoided while your disease is active. If a procedure is absolutely necessary, it should ideally be performed only after your inflammation is well-controlled by medications ^[5][6]. However, pathergy risk should never cause you to delay urgent life-saving drainage of a suspected deep or necrotizing infection.

Debridement: A Specialist’s Decision

Debridement is the process of removing dead or infected tissue from a wound to help it heal. Debridement decisions must be made by a specialist team, as even gentle manipulation can sometimes trigger pathergy. You should never attempt to self-debride or “pop” wounds at home ^[3][7]. What appears to be “dead” tissue may actually be active inflammation or infection requiring specialist care.

Daily Wound Management Principles

Your daily goal is to protect your skin from trauma while managing the fluid (exudate) and pain associated with your ulcers ^[8][9].

1. Atraumatic Care: Always use non-adherent dressings (dressings that won’t stick to the wound bed) as directed by your clinician. When a dressing sticks, removing it can cause minor trauma that triggers pathergy ^[10].
2. Avoid Adhesives: Whenever possible, avoid applying strong adhesive tapes directly to the skin near a wound. Use soft silicone adhesives or wrap-around bandages (like Gauze) to hold dressings in place ^[10].
3. Moisture Balance: PG and HS wounds can produce significant amounts of fluid. Your wound care team may use absorbent foams or specialized moisture-balancing products to keep the wound moist enough to heal but dry enough to prevent the surrounding skin from becoming “soggy” or macerated ^[11].
4. Gentle Cleansing: Avoid scrubbing the wound. Use gentle irrigation with sterile saline or a mild, non-irritating cleanser recommended by your dermatologist ^[8].

Specialized Tools: NPWT and Grafting

Once the underlying inflammation is calmed by systemic drugs, your care team may use advanced tools to speed up healing:

• Negative-Pressure Wound Therapy (NPWT): Sometimes called a “wound vac,” this uses a vacuum dressing to pull out excess fluid. In PASH, this is almost always used alongside immunosuppressants to prevent it from causing trauma ^[12][6].
• Skin Grafting: If a large ulcer is stable and no longer “active,” a skin graft can help close the wound. However, this is usually a last resort and is only done when the risk of the “donor site” turning into a new ulcer is low ^[6][13].

Managing Pain

The pain from PASH ulcers is often described as “out of proportion” to what can be seen ^[14]. Effective wound care must include a pain management plan, especially during dressing changes ^[14][15]. This may include topical numbing agents, systemic pain medications, or “pre-medicating” before your daily routine. (If your pain suddenly changes and worsens out of proportion, seek prompt review for infection). Restoring the integrity of the skin through biologics is ultimately the most effective way to resolve this chronic pain ^[14].