The term 'botanical swelling' is a reference to the medical condition known as EDEMA, which is characterized by an abnormal accumulation of fluid in the body's tissues. EDEMA is caused by a variety of factors, including poor circulation, kidney disease, and certain medications. It can also be caused by an allergic reaction to certain plants or plant-based products. Botanical swelling is a term used to describe the swelling that occurs when a person is exposed to a plant or plant-based product.