What was the first thing that Lister used phenol for?

Joseph Lister first used phenol as an antiseptic in surgical procedures in the 1860s. He applied it to disinfect surgical instruments and clean wounds, aiming to reduce postoperative infections. His use of phenol marked a significant advancement in surgical practice and hygiene, laying the groundwork for modern antiseptic techniques. This approach greatly improved patient outcomes and revolutionized surgery.