Why Dressing Selection Matters
Choosing the correct wound dressing is one of the most impactful decisions in wound care. The right dressing maintains a moist wound environment, manages exudate, protects surrounding skin, and supports healing. The wrong dressing can macerate peri-wound skin, dry out the wound bed, or lead to infection.
This guide covers the main dressing categories used in Singapore clinical and home care settings, with clear selection criteria based on wound assessment findings.
Wound Assessment Before Dressing Choice
Before selecting a dressing, assess:
- Wound bed tissue type - granulation, slough, eschar, or epithelialising
- Exudate level - none, low, moderate, or heavy
- Wound depth - superficial, partial thickness, full thickness, or cavity
- Infection signs - redness, warmth, swelling, purulent discharge, odour
- Peri-wound skin condition - intact, macerated, excoriated, or fragile
Foam Dressings
Foam dressings are highly absorbent and suitable for wounds with moderate to heavy exudate. They provide thermal insulation and mechanical protection. Foam dressings come in adhesive and non-adhesive forms, with or without a border.
Best for: Pressure injuries, leg ulcers, diabetic foot ulcers, donor sites, and post-surgical wounds with moderate drainage.
Not ideal for: Dry wounds or wounds with minimal exudate (they can desiccate the wound bed).
Popular brands at EMIS+: ConvaTec Aquacel Foam, B.Braun, 3M, Coloplast.
Alginate and Fibre Dressings
Alginate dressings are made from seaweed derivatives (calcium alginate) and form a gel on contact with wound exudate. They can absorb up to 20 times their weight in fluid, making them ideal for heavily exuding wounds. Some versions include silver for antimicrobial action.
Best for: Heavily exuding wounds, cavity wounds, infected wounds (with silver), venous leg ulcers.
Not ideal for: Dry wounds, third-degree burns, or wounds with minimal drainage.
Hydrocolloid Dressings
Hydrocolloid dressings contain gel-forming agents (carboxymethylcellulose, pectin, gelatin) that interact with wound exudate to form a moist gel. They are occlusive or semi-occlusive and promote autolytic debridement.
Best for: Low to moderately exuding wounds, superficial burns, pressure injuries (prevention and treatment), donor sites, and necrotic wounds needing autolytic debridement.
Not ideal for: Heavily exuding wounds, infected wounds, or deep cavity wounds.
Hydrogel Dressings
Hydrogel dressings are water-based (typically 70-90% water) and donate moisture to dry wounds. They facilitate autolytic debridement and are soothing for painful wounds.
Best for: Dry or necrotic wounds, second-degree burns, radiation skin reactions, painful wounds, and wounds needing debridement.
Not ideal for: Heavily exuding wounds.
Film Dressings
Transparent film dressings are thin, polyurethane membranes that allow oxygen exchange but are impermeable to bacteria and water. They do not absorb exudate.
Best for: Superficial wounds, IV site protection, skin protection under tapes, autolytic debridement of small necrotic areas, and as a secondary dressing.
Not ideal for: Exuding wounds of any kind.
Antimicrobial Dressings
Antimicrobial dressings contain agents such as silver, iodine, polyhexamethylene biguanide (PHMB), or honey to reduce bacterial bioburden. They are used when infection is suspected or confirmed, or for high-risk wounds.
Best for: Infected wounds, colonised wounds, diabetic foot ulcers, burns, and wounds at high risk of infection.
Note: Antimicrobial dressings should be used for a defined period (typically 2-3 weeks) and reviewed. They are not a substitute for systemic antibiotics when clinically indicated.
Advanced Wound Care: NPWT
Negative Pressure Wound Therapy (NPWT) applies controlled sub-atmospheric pressure to the wound bed, promoting perfusion, reducing exudate and oedema, and stimulating granulation tissue formation. It is used for complex, hard-to-heal wounds.
Quick Selection Reference
| Wound Characteristic | Recommended Dressing |
|---|---|
| Heavy exudate | Alginate, foam, superabsorbent |
| Moderate exudate | Foam, hydrocolloid |
| Low/minimal exudate | Hydrocolloid, hydrogel, film |
| Dry/necrotic wound | Hydrogel, hydrocolloid (autolytic debridement) |
| Infected wound | Antimicrobial (silver/iodine), alginate AG |
| Cavity wound | Alginate rope, cavity foam, hydrogel |
| Superficial/epithelialising | Film, thin hydrocolloid, non-adherent contact layer |
Frequently Asked Questions
How often should I change a wound dressing?
Dressing change frequency depends on exudate level and dressing type. Heavily exuding wounds with alginate or foam may need changes every 1-2 days, while hydrocolloids on low-exudate wounds can remain for 3-5 days. Always follow clinical assessment and product instructions.
Can I use any dressing on an infected wound?
No. Infected wounds require antimicrobial dressings (silver, iodine, PHMB, or medical-grade honey) and may need systemic antibiotics. Using a non-antimicrobial dressing on an infected wound can worsen outcomes.
Where can I buy wound care supplies in Singapore?
EMIS+ is a Singapore-based medical supply store specialising in wound care, ostomy products, and infection control supplies. We carry ConvaTec, Coloplast, B.Braun, 3M, and other leading brands, with islandwide delivery and WOCN nurse home visits available.
What is the difference between foam and alginate dressings?
Foam dressings absorb exudate through their porous structure and provide cushioning. Alginate dressings form a gel on contact with exudate and can absorb more fluid, making them better for very heavy drainage and cavity wounds. Foam is better for moderate exudate and wound protection.
Clinical review: This content was medically reviewed by Jamie N Y.M, WOC Nurse (Wound, Ostomy and Continence). Last updated: October 2026. For individual clinical concerns, consult a healthcare professional.