The invention relates to the field of medicine, specifically to broad-spectrum medications, and can be used, for example, for treating acne, acne scars, arthritis, osteoarthritis, and a number of other illnesses. The aim of the proposed invention is increasing the effectiveness of a broad-spectrum preparation, including a preparation applied to the skin of a patient. This aim is achieved in that a medicinal preparation (for example, a preparation applied to the skin) comprising products produced by incubating a kombucha zooglea is characterized in that it comprises kombucha culture biomass and a binding (adhesive) agent in the ratio : kombucha culture biomass 3-70%, binding agent - remainder.