Foam dressings are highly absorbent, making them ideal for managing the exudate commonly produced by surgical wounds with drains. They provide effective cushioning, protecting the wound site and drain insertion point from trauma. Foam dressings also maintain a moist wound environment that promotes healing while preventing maceration of surrounding skin. Their thickness and conformability allow easy accommodation around drains without compromising the seal. Unlike transparent films or hydrocolloids, foam dressings handle moderate-to-heavy exudate better, reducing the risk of leakage and infection.

Reference: Wound Care Essentials, 5th Edition.