Combine berries, herbs, and water in a pot, and bring to a boil. Reduce heat and simmer for about 40 minutes. Volume will reduce by ½ to ⅓. Strain liquid using cheesecloth or muslin, squeezing juice from berries and herbs. Finally, add honey in a ratio that is about half the total volume (more honey means a longer shelf life). Add half that amount of brandy if desired, to extend shelf life. Store syrup in the fridge and enjoy a tablespoon or more daily for immune support.