Cold and flu season is here. While flu shots are widely available, there’s a growing demand for natural medicines. Elderberry syrup is making its mark in the Lowcountry. It’s becoming wildly popular in the Charleston area. Sara Gail runs Island Kombucha, a small Daniel Island business. Gail is a registered and licensed dietitian. She said her elderberry syrup is so popular, she’s taking between 50 and 100 orders a day.