The theory of chest pain due to pulse syndrome puts forward that "phlegm congeals qi, or too much pungent and hot drink, and blood accumulates in it, resulting in chest tightness and chest pain" It is pointed out that phlegm and blood stasis block collaterals and lead to chest pain. Modern people are mostly wet and turbid, but if they are wet and turbid for a long time, they will be turbid, blocking meridians, abnormal blood circulation, blood stasis and mutual resistance of phlegm and blood, leading to poor heart pulse, chest tightness and heartache. Clinically, this kind of patients are more common, manifested as chest tightness and chest pain, especially at night, which leads to shoulder and back pain, palpitation, shortness of breath, heavy limbs, obesity, excessive phlegm, dark purple tongue, white and greasy tongue coating, heavy and slippery pulse or astringent pulse. Treatment is mainly based on resolving phlegm and dredging collaterals, promoting blood circulation and removing blood stasis. This prescription is made of Trichosanthes kirilowii decoction and Xuefu Zhuyu decoction, which are commonly used in clinic, such as Trichosanthes kirilowii, Allium macrostemon, Pinellia ternata, Angelica sinensis, Cinnamomum cassia twig, peach kernel, safflower, Achyranthes bidentata, Radix Rehmanniae, Radix Paeoniae Rubra, Pericarpium Citri Tangerinae and Poria.

Second, activating yang to dispel cold, resolving phlegm and reducing qi.

"synopsis of the golden chamber, chest pain and short pulse syndrome" says: "yang is slightly weak, that is, chest pain, so it is blamed for its extreme deficiency. Now we know that yang deficiency is in the upper jiao, so those with chest pain and heartache are also due to their yin strings. " Deficiency of chest yang, yin evil (cold evil, phlegm turbidity, water evil, etc. ) Qi stagnation is the pathogenesis. The common clinical symptoms of this kind of patients are chest tightness, shortness of breath, aggravation after exercise, heartburn, backache, severe cold pain, cold syncope of limbs, pale face, white tongue coating, thin or slippery pulse. In the treatment, the methods of activating yang, dispelling cold, resolving phlegm and reducing qi were adopted. The prescriptions are mostly modified by Fructus Trichosanthis, Fructus Aurantii and Stellate Guizhi Decoction. Clinically, Trichosanthes kirilowii, garlic, Pinellia ternata, Fructus Aurantii, Ramulus Cinnamomi, Magnolia Officinalis, Radix Codonopsis, Pericarpium Citri Tangerinae, etc.

Third, nourishing yin, invigorating qi and promoting blood circulation.

Deficiency of both qi and yin with blood stasis is very common in patients with angina pectoris of modern coronary heart disease, especially in middle-aged and elderly patients. Chinese medicine believes that "Yin Qi is over 500 years old", combined with long-term mental work, long-term work tension and great pressure, will "worry about hurting the spleen", resulting in deficiency of both qi and yin, blood stasis blocking collaterals, leading to chest obstruction and heartache. Such patients often have chest tightness, dull pain or tingling in the precordial region, intermittent palpitation, shortness of breath, easy sweating, pale face, teeth marks on the pale side of the tongue, and thin, slow or stringy pulse. In clinical practice, nourishing yin and benefiting qi, promoting blood circulation and removing blood stasis have achieved good results every time. Radix Pseudostellariae, Rhizoma Polygonati Odorati, Radix Ophiopogonis, Cortex Eucommiae, Fructus Lycii, Rhizoma Chuanxiong, Radix Angelicae Sinensis, Radix Salviae Miltiorrhizae, Flos Carthami, Radix Paeoniae Rubra and Semen Ziziphi Spinosae are commonly used in clinic.

Fourth, aromatic resuscitation, warming and relieving pain.

Su Wen's Theory of Great Pain said: "Cold enters the meridians late, so you can't cry. The guest is outside the pulse, the blood is less, the guest is in the pulse, and the qi is blocked, so it hurts. " "On Su Wenbi" said: "Those who suffer from pain suffer from excessive cold, so they suffer from cold." Su Wen's Theory of Regulating Classics says: "Blood-gas people ... cold is astringent and can't flow, but warm is not." It shows that the cold is stagnant, the evil of yin and cold is excessive, and the blood and blood are blocked, which will lead to heartache. Clinically, such patients often show chest tightness and pain, aggravated cold, severe heartache, pulling on the left shoulder, palpitation and shortness of breath, cold limbs, blue lips, dark red tongue, white greasy fur and heavy pulse. For the pain caused by cold, it is advisable to dispel cold and warm the pain. For example, as stated in the Medical Law Affirming Zhongjing Fa Shu, "the meridians are heartbroken, ... the meridians are suddenly warm, and the viscera are heartbroken, ... and the viscera is suddenly warm". Zanthoxylum bungeanum, Evodia rutaecarpa, Zingiberis Rhizoma, Moschus, Radix Aucklandiae, Herba Asari, Atractylodis Macrocephalae, Radix Aconiti Lateralis Preparata, Curcuma Rhizome and Magnolia Officinalis are widely used in clinic.

Five, nourishing yin and kidney, nourishing the heart and calming the nerves

Clinical angina pectoris of coronary heart disease is common in heart-kidney yin deficiency syndrome, which is common in chest tightness, shortness of breath, palpitation, poor sleep and so on. The clinical symptoms of kidney yin deficiency include chest tightness, shortness of breath, dizziness and tinnitus, soreness of waist and knees, frequent urination at night, dark tongue, thin and white fur, little or no fur, and heavy pulse or string. Treatment is mainly based on nourishing yin and kidney, nourishing heart and calming nerves. Prescriptions are mostly modified by Qijudihuang Decoction and Shouwu Yanshou Dan, and clinical treatments are mostly cortex moutan, Taxilli, Flos Chrysanthemi, Radix Rehmanniae, Semen Cuscutae, Rhizoma Polygonati, Polygonum Multiflori Radix, Poria, Achyranthis Radix, Fructus Lycii, Semen Ziziphi Spinosae, etc.

Sixth, soothing the liver and clearing away heat, promoting blood circulation and relieving pain.

With the accelerated pace of life and the increase of mental stress, many patients with coronary heart disease and angina pectoris often suffer from different degrees of depression. Patients often show nervousness, impulsiveness, strong personality and impatience. In order to realize one's wishes, compulsion is often suppressed, and thinking is much more troublesome. This kind of patients tend to stagnate liver-qi, which is the easiest to melt fire, and fire is easy to suffer from yin and consume heart. Coupled with blood stasis blocking collaterals, chest tightness, shortness of breath, chest pain and other symptoms appear. Treatment is mainly based on soothing the liver and purging heat, and there are also methods of promoting blood circulation and relieving pain. Bupleurum, Radix Curcumae, Flos Lonicerae, Scutellariae Radix, Flos Chrysanthemi, Radix Salviae Miltiorrhizae, Radix Ophiopogonis, Poria, Radix Angelicae Dahuricae, Radix Puerariae, Fructus Toosendan, Rhizoma Corydalis, etc. Commonly used in clinic, it has a good effect on relieving chest tightness, shortness of breath, chest pain and other symptoms.

In addition, because angina pectoris is the main symptom of coronary heart disease, it is very important to find effective painkillers in traditional Chinese medicine. Among the single traditional Chinese medicines, musk, notoginseng, long pepper and linderae have good analgesic effects on borneol, American ginseng, notoginseng, cattail pollen combined with trogopterori, sandalwood combined with salvia miltiorrhiza, bergamot combined with citron and so on. Therefore, evidence-based selection should be emphasized in clinical practice.