The athletic trainer is treating a patient with a grade 2 MCL sprain. After the first week there is still considerable swelling on the medial side of the knee just below the joint line. He decides to...

The athletic trainer is treating a patient with a grade 2 MCL sprain. After the first week there is still considerable swelling on the medial side of the knee just below the joint line. He decides to use a contrast bath to take advantage of the “pumping action” of vasoconstriction/vasodilation. Is this technique likely to be effective?