Garden Burnet Root Classic Formulas … Natural Herb Library

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Cools blood and stops bleeding ... Di Yu is a classic root for bleeding from heat, especially hemorrhoidal bleeding, bloody stool, and lower-burner blood-loss patterns.
Clears heat and resolves toxic swelling ... the root is used for dysenteric heat, weeping sores, ulcerated lesions, and inflamed tissue when lower-body heat is obvious.
Aids damaged tissue and burns ... raw or topical use extends to burns, moist lesions, and damaged skin where cooling and astringing actions are both useful.

Di Yu San type hemorrhoidal-bleeding formulas ... a classic lower-burner bleeding lane.
Heat-clearing hemostatic pairings with Huai Hua, Ce Bai Ye, or Huang Qin ... used when bleeding and inflammation coexist.
Topical burn and sore applications with astringent or tissue-repairing herbs such as Bai Ji ... practical external-use logic.

Materia medica consistently values Di Yu for lower-body bleeding and damp-heat dysentery rather than for warming or tonifying work.
The raw-versus-charred distinction is part of its classical identity and should not be erased in simplified summaries.