What did Hippocrates use to make his medicine and who did he work with?

Hippocrates, often regarded as the "Father of Medicine," utilized a variety of natural substances, including herbs, plants, and minerals, to create his medicinal remedies. He emphasized observation and clinical experience in his practice and worked closely with other physicians and scholars of his time, collaborating to advance medical knowledge. His teachings laid the groundwork for a more systematic and empirical approach to medicine, focusing on the diagnosis and treatment of diseases.