If there is blood deficiency and atrophy, dizziness, palpitations, insomnia, etc. in summer, one can take Colla Corii Asini; if there is deficiency of qi and yin, deficiency of heat and tiredness, coughing, phlegm and blood, internal heat and thirst, etc. in summer, one can take Radix et Rhizoma Ginseng. If there are no symptoms mentioned above, it is not recommended to take Colla Corii Asini and Radix et Rhizoma Ginseng in summer. Colla Corii Asini has the effects of tonifying blood and nourishing yin, moistening dryness and stopping bleeding, which can improve or treat myasthenia gravis, internal movement of deficiency wind, coughing with dryness of the lungs, coughing with exertion and hemoptysis, vomiting and urination of blood, blood in stool and leakage of urine and faeces (excessive menstrual flow or dripping), and foetal leakage of pregnancy (small amount of bleeding from the vagina in the early stage of pregnancy) and other conditions. People with weak spleen and stomach, dyspepsia should not take it. Radix Panax Ginseng has the effects of tonifying qi, nourishing yin, clearing heat and promoting generation of body fluid, and can be used to improve or treat internal heat and thirst (internal heat accompanied by excessive eating, drinking and urination), dry mouth and throat. It should not be used together with veratrum. Chinese medicine should be used according to the evidence, so it should be used under the guidance of a doctor, do not use it blindly without authorization.