Combine the water, sugar, cherries (and herbs if using) in a saucepan over medium heat. Use the back of a spoon or a muddler to smash the cherries as much as possible. Bring the mixture to a boil and then lower the heat. Let simmer until the sugar is dissolved. Remove from the heat and let cool. Once cooled for about an hour, strain through a fine mesh strainer into a glass jar with a lid. Place in the refrigerator. This can be stored for about one week. Enjoy!