What is the primary treatment for mild heat cramps?

The primary treatment for mild heat cramps is rehydration with fluids, as it directly addresses the underlying cause of the cramps, which is often related to dehydration and electrolyte imbalances. When the body loses a significant amount of water and salts through sweating, it can lead to painful muscle contractions. Rehydrating with fluids, especially those containing electrolytes like sodium and potassium, helps restore the necessary balance in the body, alleviating the cramps.

While cooling the body, massaging the affected muscles, and applying ice packs can provide some relief, they do not specifically address the dehydration issue that is commonly at the root of heat cramps. Cooling and applying ice can help reduce overall body temperature and muscle tension, but without rehydration, the cramps might persist or recur due to ongoing imbalances. Thus, rehydration is the most effective and essential treatment in this context.