Body weakness after prolonged illness can be restored and regulated by taking Donkey Collagen Blood Replenishing Pills or Ten Complete Pills, etc. It is recommended to take the medication under the guidance of a doctor. The deficiency of qi, blood, yin and yang of the body due to prolonged illness or weakness and lack of conditioning, resulting in an imbalance of yin and yang and causing fever and other symptoms. 1. Donkey Collagen Blood Replenishing Pills, composed of Colla Corii Asini, Astragalus, Radix Astragali, Radix Rehmanniae Praeparata, has the effect of replenishing blood, benefiting qi and regulating menstruation, and is commonly used clinically for the treatment of deficiency due to deficiency of qi and blood in chronic diseases, yellowish skin, dizziness, oligomenorrhea, amenorrhea, etc. This medicine should not be taken when you have a cold. This medicine should not be taken when you have a cold; it should not be taken by people with excessive menstruation. 2. Shiquan Da Mending Pill, composed of Codonopsis, Atractylodes macrocephala, Poria, Glycyrrhiza glabra, has the effect of warming qi and blood, and is commonly used in the treatment of deficiency of qi and blood, pallor, shortness of breath, palpitations (accelerated heartbeat, often accompanied by panic), dizziness and spontaneous sweating (involuntary sweating during the daytime, aggravated by sweating with a slight movement), and lack of warmth in the extremities. It should not be taken by those who have external wind-cold or wind-heat sensation, and those who have solid internal heat. Patients in need are advised to seek prompt medical treatment.