Yes, the product description highlights compress-style application as a typical use for warming smaller areas. This method is common in balneological practices where concentrated mineral effects are desired locally.
To prepare a compress, dilute the saline solution with warm water. There's no fixed ratio provided, so a sensible approach is to start with a modest amount, such as a few tablespoons of solution in a bowl of water, and adjust based on skin sensitivity and desired warmth. Soak a clean cloth or gauze in the mixture, wring it out lightly, and apply it to the area for 10-20 minutes. The high magnesium content can create a warming sensation. It's particularly suitable for areas like feet after prolonged standing or hands. Always avoid applying to broken, freshly irritated skin or near the eyes.