How many times can you safely use ice?

How Often and How Long Should You Ice an Injury?

Applying ice is one of the most effective ways to reduce swelling and numb pain after an acute injury. However, more isn't always better. To prevent frostbite or tissue damage, you should limit each icing session to a maximum of 20 minutes at a time.

You can safely ice an injured area multiple times throughout the day, provided you give your skin enough time to return to its normal temperature between applications. A good rule of thumb is to wait at least one to two hours between sessions.

If holding ice on your skin for 20 minutes feels uncomfortable, it helps to understand the typical progression of sensations, often remembered by the acronym CBAN:

When ice is first applied, you will feel intense cold (Cold). Within a few minutes, this transitions to a mild stinging or prickling sensation (Burning), followed by a dull aching feeling (Aching). Finally, the area will go completely numb (Numbness). Once you reach the numbness stage, the nerve endings are temporarily desensitized, and you can safely remove the ice compress even if the full 20 minutes haven't passed.