Yin deficiency and internal heat often cause colds and flu, you may choose to take Add and Subtract Weiwei Tang and Gui Shao Di Huang Wan. Yin deficiency and internal heat colds are usually characterized by body heat, a slight aversion to wind-cold, dry cough with little phlegm, night sweating (abnormal sweating after going to sleep, but sweating stops after waking up) or no sweating or slight sweating, dry mouth, heartburn, dizziness, thirst and other symptoms. 1. Jia Zai Weiwei Tang is composed of raw Weiwei, scallion white, tangerine root, tempeh, peppermint, red date and licorice, etc. It is effective in nourishing Yin and relieving symptoms. The adverse effects and contraindications of Jiajiaweiwei Tong are not clear. 2. Gui Shao Di Huang Wan (归芍地黄丸) is composed of Radix Angelicae Sinensis, Radix Paeoniae Alba, Radix Rehmanniae Praeparatae, Radix Rehmanniae Praeparatae, Rhizoma Dioscoreae, Rhizoma Dioscoreae, Rhizoma Dioscoreae, Radix Polygoni Multiflori, Poria, and so on. The adverse effects and contraindications of Radix Rehmanniae Praeparata Pill are not clear. It should be noted that if patients with yin deficiency and internal heat often catch colds, it is recommended to go to regular medical institutions for treatment; if patients need to use the above medicines, they should use them under the guidance of a doctor to avoid delaying their condition.