Patients with weak spleen and stomach, and patients who are allergic to this product should not take Colla Corii Asini. Colla Corii Asini is a traditional Chinese medicine, which is sweet in flavor, flat in nature and enters the lung, liver and kidney meridians. Colla Corii Asini is the skin of donkey, family Equidae. Its effect is to replenish blood and yin, as well as moisturize the lungs and stop bleeding. It is used for blood deficiency, hemorrhage, lung yin deficiency cough, fever, irritability and insomnia. It also has therapeutic effects on yin deficiency and wind movement, and spasm of hands and feet. Adverse effects of Colla Corii Asini are not clear. Avoid combining with rhubarb, allergic to the product is prohibited. It should be noted that this product is sticky and greasy, which hinders digestion, so it should be used with caution for people with weak spleen and stomach. Chinese medicines and proprietary Chinese medicines are recommended to be used under the guidance of a professional Chinese medicine practitioner, and individuals should not use them blindly to avoid adverse effects.