The symptoms of phlegm turbidity obstruction type include chest tightness as if blocked and accompanied by pain, or pain extending to the shoulders and back, heavy limbs, obesity, greasy coating on the tongue, and slippery pulse. For treatment, it is advisable to promote Yang circulation and eliminate turbidity. The prescription is modified Gualou Xiebai Banxia Decoction (12g each of Gualou, Banxia, Corydalis yanhusuo, and Aurantii Fructus, 15g each of Acorus tatarinowii and Salvia miltiorrhiza, 10g each of Xiebai, Cinnamomum cassia, Magnolia officinalis, and dried tangerine peel). Take one dose per day, decocted in water for oral administration. 2. Symptoms of qi stagnation and blood stasis type include chest pain as sharp as a thorn or colic, chest tightness and shortness of breath, palpitations, ecchymosis or dark color on the lips and tongue, and a fine and sluggish or intermittent pulse. The treatment should focus on regulating qi, promoting blood circulation and unblocking meridians. The prescription is modified Xuefu Zhuyu Decoction (10g each of Peach kernel, Safflower and Fructus aurantii, 12g each of Angelica sinensis tail, Red Peony root, curcuma, Corydalis yanhusuo and Platycodon grandiflorum, 15g each of Ligusticum chuanxiong and Salvia miltiorrhiza). Take one dose per day, decocted in water for oral administration. 3. Symptoms of deficiency of both heart qi and Yin include chest tightness and dull pain that comes and goes, palpitations and shortness of breath, pale complexion, listlessness and reluctance to speak, dizziness and blurred vision, a slightly red tongue or with tooth marks, and a fine, weak and feeble pulse. The treatment should focus on tonifying qi and nourishing Yin. The formula is modified Shengmai SAN (18g of Pseudostellaria heterophylla, 12g each of Ophiopogon japonicus, Curcuma japonica, and Polygala tenuifolia), 15g each of Paeonia lactiflora, Salvia miltiorrhiza, Poria cocos, and Polygonum multiflorum, 10g of Schisandra chinensis, and 20g of Polygonum multiflorum. Take one dose per day, decocted in water for oral administration. 4. Symptoms of heart and kidney Yin deficiency include chest tightness and pain, palpitations, night sweats, restlessness, insomnia, dizziness, tinnitus, and lumbar and knee problems? Soft, red tongue with little coating, and fine, rapid pulse. The treatment should nourish the heart and kidneys. The formula uses modified Zuo GUI Yin (18g of Rehmannia glutinosa, 15g each of Cornus officinalis, Chinese yam, Lycium barbarum, and Salvia miltiorrhiza, 12g each of Poria cocos, Ophiopogon japonicus, Jujube seed, Anemone, and turtle shell gum). Take one dose per day, decocted in water for oral administration.