After a sprained ankle, what activity should a patient avoid for the first 24 hours?

Using a heating pad should be avoided in the first 24 hours after a sprained ankle because heat can increase blood flow to the injured area, potentially leading to increased swelling and inflammation. In the initial stages of a sprain, the main focus is to control swelling and manage pain. Cold therapy, such as ice packs, is beneficial during this time as it helps reduce swelling and numbs the area to relieve pain. Elevating the foot helps decrease swelling by promoting fluid drainage away from the injury, while resting the ankle prevents further injury and allows healing to begin. Therefore, applying heat is counterproductive in the acute phase of an ankle sprain and can delay the recovery process.