Colla Corii Asini, nourishes blood and nourishes Yin, moistens dryness and stops bleeding. It is used for deficiency of blood and atrophy, dizziness and palpitation, sleeplessness, dry lung and cough. Ingredients: Donkey skin, yellow wine, rock sugar, soybean oil. Contraindications of Colla Corii Asini: People with spleen deficiency, as the saying goes, deficiency without tonic. People who have colds or infectious diseases. Therefore, not all people need Colla Corii Asini, while for tumor patients, proper use during radiotherapy can prevent and control hematological toxic side effects. When the spleen and stomach are weak, it must be used together with medicines to strengthen the spleen and help transportation. When the tumor is unstable, it is not suitable to use Colla Corii Asini or solid yuan paste alone to supplement the tumor growth. Recently, solid yuan paste has become popular throughout the country, and for tumor patients with stable condition, they can choose the appropriate combination according to medical advice. Tumor instability can not be blindly supplemented.