Confused about whether you should use ice or heat to ease your sciatica or back pain? It’s easily one of the most common questions we get asked, and it trips a lot of people up. Most of our clients tend to favor heat, a hot water bottle, a soak in the bath, a hot stone massage, probably because warmth is soothing and relaxing, while even the thought of ice on your back can make you shiver. But every injury is different, and sometimes ice is the right call, sometimes heat is. Here’s how to tell which is which.
When to use ice
Use ice when something just happened and it’s very painful, likely inflamed, and maybe swollen: an “acute” injury, meaning it’s fresh. Think a sprained ankle or a pulled muscle. For your back, that means your back seizing up after an awkward lift, or becoming very painful after you’ve overdone it during the day.
Your body is actually pretty clever here. When you sprain an ankle, your body immediately tries to protect itself, which is why it swells and becomes hot and painful. That swelling is your body’s natural cushion, and the pain and heat come from inflammation, another way your body protects itself: if something hurts, you’re less likely to move it or touch it, giving it a chance to heal without more damage. The exact same thing is happening in your back, you just can’t see it. That pain can be worse than the actual injury itself, so cooling it down with ice (about 20 minutes every hour or so) is a simple way to ease the intensity of the pain quickly, and the cooling and re-warming helps keep blood flowing to the area to support healing.
When to use heat
Think of it like this: when something is warm, it’s softer; when it’s cold, it’s harder (like a piece of chocolate left in your pocket). Your body works the same way. Use heat when you feel more stiff and achy and need to get things moving. If your back’s feeling tight first thing in the morning, a hot shower to loosen the muscles works wonders, especially followed by some gentle stretches.
Typically, if it’s something that’s been nagging you for a while (chronic) and it’s more stiff and achy than sharply painful, heat is the way to go. Stiff, tight muscles and joints simply can’t stretch as far as you need them to, which makes them more prone to injury, the same reason athletes warm up before their sport. Overnight, our muscles cool down since they’re not being used, so a warm shower and a few minutes of simple stretching in the morning does for your back what a warm-up does before exercise. A combination of yoga- and Pilates-style stretches is a great way to keep your back healthy and pain-free.
The simple rule
If it just happened and it’s very painful, ice it. If it’s stiff and tight, warm it up.