Horseradish powder is a spicy powder, usually mixed in cream or mayonnaise, such as mayonnaise, sour cream or cream cheese, to make a very “spicy” dip sauce. Horseradish powder is rich in various vitamins and minerals such as iron, calcium, phosphorus, cobalt and zinc. It has the effects of relieving the external heat, warming the spleen, helping the kidney and diuresis, and stimulating the nerves. It is mainly used for treating indigestion, bad urination, cholecystitis, prostatitis and arthritis. It can also be taken orally as a stimulant.