“Should I use heat or ice?” is one of the most common questions we hear after an injury. For years, ice was the automatic recommendation for almost any new injury—especially if swelling was present. But our understanding has evolved.
The short answer? Heat and ice can both be useful, but primarily for symptom relief—not because they dramatically speed up healing.
When Should You Use Ice?
Ice is most useful for short-term pain relief following an injury. Temporarily cooling the area can reduce nerve conduction and reduce how painful the area feels. This can make ice helpful after an acute injury, after activity, or anytime pain is particularly bothersome.
But what about swelling?
Despite the traditional advice to “ice it to get the swelling down,” current evidence does not strongly support ice as an effective way to reduce swelling and inflammation or meaningfully accelerate tissue healing.
Inflammation is also a normal and necessary part of the body’s healing response. The goal isn’t always to eliminate it.
Consider ice when:
- You have a recent painful injury
- Pain is preventing comfortable movement
- It simply makes the area feel better
Think of ice primarily as a pain-management tool.
When Should You Use Heat? Consider heat when:
- An area feels stiff or tight
- You’re experiencing muscular soreness or tension
- Heat makes it easier or more comfortable to move
Like ice, heat shouldn’t be viewed as something that “heals” an injury. It’s another tool that can help manage symptoms and facilitate movement.
What Should You Do for Swelling?
Ice temporarily constricts blood vessels and slows local circulation, but it does not actively remove the fluid that has already accumulated in the tissues; clearing that fluid relies more on the lymphatic and circulatory systems.
If ice isn’t necessarily the answer, what should you do when an injury becomes swollen?
First, some swelling after an injury is normal. Rather than trying to eliminate swelling, the goal is usually to manage excessive swelling that is uncomfortable or interfering with movement.
- Compression: A properly fitted compression garment or wrap can help manage swelling.
- Elevation: Elevating the injured area may temporarily help limit fluid accumulation, particularly early after an injury.
- Gentle movement: Muscle contractions help move fluid through the circulatory and lymphatic systems.
- Avoid prolonged inactivity: Complete rest is rarely the long-term solution for most musculoskeletal injuries.
So…Heat or Ice?
Painful and irritated? → Ice may provide temporary relief.
Stiff, sore, achy, or tight? → Heat may feel better.
Swollen? → Think compression, elevation, gentle movement
And if you don’t like either heat or ice?
You don’t need to use them. They are simply tools that can make you more comfortable while your body recovers.
The Bigger Picture
When recovering from most musculoskeletal injuries, the most important question isn’t necessarily:
“Should I use heat or ice?”
It’s:
“What can I safely start doing to get this area moving and functioning normally again?”
That’s where physiotherapy comes in. A physiotherapist can assess your injury, determine what movements and activities are appropriate, and guide you through progressive exercise and loading to help you return to the things you want to do.
Book an appointment with one of our physiotherapists today at 613-429-9000!
References
- Miranda J, et al. (2021). Effectiveness of cryotherapy on pain intensity, swelling, range of motion, function and recurrence in acute ankle sprain: A systematic review of randomized controlled trials. Physical Therapy in Sport, 49, 243–249.
- Dubois B, Esculier JF. (2020). Soft-tissue injuries simply need PEACE and LOVE. British Journal of Sports Medicine, 54(2), 72–73.
Author
Virginie Bedard, Registered Physiotherapist Pelvic Health and Orthopedics
Contact
Telephone: (613) 429-9000
Email: info@thephysiospace.ca
Website: http://www.thephysiospace.ca
