Xin Xin is a perennial herb of Aristolochiaceae, the whole grass of Xin Xin, raw. Alias small Xin, less Xin, fine Xin root fine and pungent flavor is very strong, so the name. Characteristics: pungent, warm, slightly toxic. Attribution: To the lung, heart and kidney meridians. It is recorded in the Tang Liquid Materia Medica as an agent for inducing menstruation in the hand-shaoyin kidney meridian. Effects and Indications: First, dispelling wind, dispersing cold and relieving pain, treating headache, paralytic pain, abdominal pain and toothache. Dispersing cold and relieving symptoms of wind-cold. Warming the lungs and resolving drinks, treating cough and asthma with phlegm and drinks. It is used to treat nasal abyss, orifice closure, and fainting. Compound application: I. Xin Xin has strong pungent flavor, good dispersal, warm nature, can drive away cold, has the function of dispelling wind, dispersing cold, pain relief, suitable for headache, paralysis, abdominal pain caused by wind-cold and dampness, etc.. If the treatment of wind headache, often with chuanxiong rhizome, jingwu, fengfeng, qiangwu and other wind medicines, commonly used in the formula chuanxiong chashuoshan, there are also Chinese patent medicines to facilitate the clinical application of preparations. Such as the treatment of wind-cold and dampness, paralysis caused by blockage of meridians, paralysis pain, lumbago, also known as the formula Duhuo parasitic soup. Second, the fine Xin can dispel wind dispersal of cold, also commonly used in exogenous wind-cold evidence, to the cold partial prevalence of evil, headache, limb pain more appropriate, commonly used formulas nine Qiang Wu Tang. There is also treatment of physical Yang deficiency, external wind-cold, chills and fever, body tired to lie down, slippery tongue, pulse sinking, with ephedra, epimedium, that is, “the theory of typhoid fever” formula, ephedra, epimedium, fine Xin Tang. Third, fine Xin can warm the lung and phlegm, treatment of cold drinks ambulance lung, cough and asthma, phlegm more thin, often with ephedra, ginger, schizandra, etc., see the “theory of typhoid fever” formula Xiaoqinglongtang, specializing in the treatment of cold drinks ambulance lung gasping evidence. Fourth, the fine Xin Xin scattered away, good at the orifices, can pass the nasal orifices, nasal abyss, the nasal orifices are blocked and not smooth, when the flow of clear mucus, with Xinyi, Angelica dahurica and so on. There are also records of treating stroke unconsciousness, taking its powder and blowing the nose, in order to wake up the spirit and open up the orifices. Usage and dosage: 2-5g for internal use in soup, 0.5g-2g for powder, appropriate amount for external use. Usage Note: It is forbidden to use it in cases of excessive sweating due to deficiency of qi, headache due to deficiency of yin and hyperactivity of yang, and cough due to deficiency of yin and heat in the lungs, etc. The dosage of the powder should not be too large.