Contraindications and side effects of old stork grass are not clear, this product has the efficacy of dispelling wind-dampness, clearing the meridians and stopping diarrhea and dysentery, and should be used in accordance with medical advice. Old Stork Grass is the dried above-ground part of the geranium plant, geranium seedling, old stork grass or wild old stork grass of the geranium family, which belongs to the Chinese medicinal herbs. The Pharmacopoeia does not specify the contraindications and adverse reactions of Lao He Cao. There is also no relevant literature or research pointing out the side effects of this product. Laohe Cao is bitter in taste and flat in nature, and it has the effects of opening the meridians, dispelling wind-dampness, and stopping diarrhea and dysentery. It is used for rheumatism and paralysis, muscle and bone pain, numbness and contracture, diarrhea and so on. The use of drugs need to be under the guidance of a professional physician, do not use drugs without authorization, in order to avoid adverse consequences.