The human body is an organic whole, each part is always connected with certain meridians and internal organs, so clinically when pain is fixed in a certain part, we can choose painkillers that are suitable for the condition and can act on a specific part according to the relationship between the pain part and the internal organs and meridians, so that the medicine can reach the disease directly and enhance the curative effect. Headache: Tribulus terrestris, Ligustrum, Scorpion, Beehive, Pueraria Mirifica, Tianma, Hooked vine, Silkworm, Chuanxiong tea blend. Chest and back pain: Acute Husbandman, Flea Hue, Panax notoginseng, Guahuo, Xu Changqing, Wei Ling Xian, Danshen, Peach kernel, Allium sativum, Lost Smile San. Breast pain: green peel, loofah, Wang Bu Liu Xing, orange nucleus, A pearl, lychee nucleus, soapberry, Chai Hu and Liver Dispersion, etc. Gastrointestinal pain: Jiuxiangmu, Xiangxian, Citrus aurantium, Wu Zhuyu, Boswellia, Sumac, Wu Lingliao, Angelicae, Danshen Drink, etc. Thoracic pain: August zha, green peel, peach kernel, angelica, red peony, zelenium, dangpi, yujin, turmeric, turtle nail, golden bell seed powder, etc. Abdominal pain: cumin, red vine, mullein, citrus aurantium, lycopodium, nigella, ocimum sanctum, galangal, cinnamon, trigon, curcuma, peony and licorice soup, etc. Painful urination: Quai Mai, Wang Bu Li Xing, Tian Qi Zi, Amber, Dong Qi Zi, Long Qi, Bai Hua Shi Tong Cao, Gui Qi San, etc. Low back and leg pain: Doklamia, Sequoia, Sambucus, Niubizi, Dioscorea, Centipede, Papaya, Qing’e Pill, etc. Bone metastasis: Bonesetter, Bonesetter, Bonesetter, Cuscuta, Cuscuta, Ground turtle worm, Scorpion, Natural copper powder, etc. For systemic joint and muscle pain caused by late stage cancer, commonly used drugs such as Liu Fan Nu, Swelling Wind, Fang Ji, Gentiana, Hai Tong Pi, Gui Zhi, Ma Qian Zi, Chuan Wu, and Revitalizing Effect Elixir plus reduction. Adjustment of acidity and alkalinity for pain relief According to the literature, pain can be divided into acidic pain and alkaline pain. In alkaline pain, there is local accumulation of sodium and calcium plasma, and the cancer often shows necrosis and ulceration, while the pH value of urine increases. In acidic pain, there is a local accumulation of lactic acid and so on, and cancer cells often show active proliferation, and the pH of urine decreases. It has been suggested that pathological pain is caused by the change of local pH of nerve endings, which can be reflected by urine testing and can be corrected by corresponding alkaline or acidic drugs so as to reduce or disappear the pain. The herbs commonly used for acidic pain are: Chuanbei, Allium, Xingyi, Semen, Dongkuizi, Temperance, Baiwei, Jianghuang and Yanhu. Herbs commonly used for alkaline pain include: Schisandra chinensis, Chebulo, Hawthorn, Paeonia lactiflora, Cornu Cervi Pantotrichum, Neem, Chen Pi, Qing Pi, Jinyin Hua, Lianjia, and Xinguang Cao, etc., which can be considered clinically as appropriate.