Traumeel® S consists of multiple homeopathic substances that are expected to have effects on wound healing and inflammation. The formulation contains diluted extacts from Arnica montana, Calendula officionalis, Achillea millefolium, Chamomilla recutita, Symphytum officinale, Atropa belladonna, Aconitum napellua, Bellis perennis, Hypericum perforatum, Echinacea angustifolia, Echinacea purpurea, Hamamelis virginiana, Mecurius solubilis, and Hepar sulfuris. This compound was studied for its effect on oral mucositis.