I get them badly on occasion, when I was little, I went to the emergency room, or something like that, and they gave me a shot, and it was instant relief. Lets say I couldn't walk, and just talking hurt me badly, as well as talking. Don't drink ANYTHING with a red dye. Mix gatorade(NO RED) or propel with alot of water, and drink it all. Helps bunches! Make sure the gatorade is watered down very well, doesn't have to be so much with the Propel. It helps for sure!