On top of patience, how do sports trainers make concussion symptoms go away?

Avoid another concus: The most importnt activity for a trainer is to recognize a concussion has occurred and be sure the player is removed from the game. He should be evaluated by a physician. Using computer programs such as "impact" is an important evaluation tool. Return to sports activity should not occur until all symptoms have resolved and if impact is used, when the result of the evaluation has normalized.

Rested: Rest is the only way to help your brain recover from a concussion. You should avoid anything that makes symptoms worse, specifically physical and cognitive activity until symptoms resolve and your doctor clears you to begin increasing activity.