The pill should be the Diazi Lizhong Pill. Generally speaking, if you take the medication for 3 to 7 days, you will see some effect, but the time of effect will be different for each person. Radix Rehmanniae Pill is composed of Radix Rehmanniae Praeparata, Rhizoma Atractylodis Macrocephalae, Radix et Rhizoma Atractylodis Macrocephalae, Radix et Rhizoma Ginseng, Radix et Rhizoma Glycyrrhizae Praeparatae, and so on. It has the effect of warming the middle and strengthening the spleen. It is mainly used for treating cold pain in the epigastrium (cold pain in the stomach and abdomen) caused by coldness in the spleen and stomach (weak and cold spleen and stomach), vomiting, lack of warmth in the hands and feet, and loose stools. The adverse reactions and contraindications of Radix Rehmanniae Pill are not clear. Avoid indigestible food while taking the medicine. It should not be taken by people with fever and cold. The medicine should not be taken for a long time, and if the symptoms are not relieved after 2 weeks of taking the medicine, the medicine should be stopped and medical treatment should be sought. If you feel unwell, consult a doctor in time and do not blindly self-medicate.