There is no such thing as the best time to press the danzhong point. If you have cough, shortness of breath, chest tightness and other discomforts, you can treat them by massaging the danzhong point. If the symptoms are serious, it is recommended to seek medical treatment. The danzhong point, belongs to the Ren vein. Located in the chest, horizontal flat 4th rib space, front center line. The main treatment for cough, asthma, chest tightness, heart pain, choking, hiccups (hiccups), post-partum breast less, breast carbuncle, breast fetish (breast pain lumps, and menstrual cycle and emotional changes are closely related to the equivalent of breast hyperplasia) and so on. In modern times, it is often used in the treatment of bronchial asthma, bronchitis, chest pain, mastitis, breast milk, intercostal neuralgia, angina pectoris, coronary heart disease, pediatric spitting up breast milk and so on. If massage therapy is needed, it is recommended to go to a professional medical institution.