Ensure that the sport band isn’t wrapped too tightly around the leg, as that will contribute to gel spread. Electrode shouldn’t leave an imprint on the leg after it is removed. If it does, you need to loosen the band slightly. Remove the device when not in use to allow the gel to cool. Minimize use outdoors during hot, humid weather, when possible. Be mindful about where the device and electrode are stored in hot and humid weather, i.e., a hot car. In some cases, it may also help to alternate between two electrodes (if you switch the device at the 4-hour or “long-term wear” alert, for example) to minimize the amount of gel migration that may result from extended sessions.
Issues with gel spread are less frequent during cooler, drier months.