Da Huang Mu Dan Tang (Rhubarb and Moutan Decoction) — Herbal Remedy for Intestinal abscess: right lower abdominal pain worse with pressure, guarding, fever, constipation. Modern: acute appendicitis (early stage), pelvic inflammatory disease, diverticulitis | Living Netism

A formula for intestinal abscess (chang yong). Zhang Zhongjing described this formula for abscess of the intestine manifesting as right lower abdominal pain with guarding, which closely matches modern