The correct way to make water with pellitory is to put in the right amount of pellitory first, then pour in the right amount of boiling water, smother for about 10-15 minutes to take. Peilan is the dried above-ground part of the plant Peilan, family Asteraceae. Pelargonium belongs to the family of aromatic dampness remedies, entering the lung, stomach and spleen meridians, with pungent flavor and flat nature. Peilan has the effects of awakening the spleen and opening the stomach (promoting the functions of the spleen and stomach), aromatizing dampness, expressing and relieving summer heat, and is used in the treatment of dampness and turbidity obstruction in the middle of the body, epigastric congestion and vomiting, sweetness and greasiness in the mouth, bad breath, excessive salivation, superficial evidence of summer dampness, the first symptoms of dampness and warmth (caused by feeling dampness and heat), heat and tiredness and tightness in the chest. The adverse reactions and contraindications of Peilan are not clear at the moment. If needed, please use under the guidance of a professional Chinese medicine practitioner.