Diarrhea after eating cold may be caused by deficiency of yang qi in the spleen and kidneys, etc. You can take Radix Rehmanniae Pills, Xiao Jianzhong Tablets, Sishen Pills, etc., but the use of specific medicines should follow the guidance of a Chinese medicine practitioner in the identification of the symptoms. Diarrhea after consuming cold food may be caused by deficiency of yang qi in the spleen and kidneys. Deficiency of yang qi in the spleen and kidneys will weaken the function of transporting and transforming water and grains, resulting in diarrhea, and consuming cold food will hurt the yang of the spleen and kidneys even more, which will aggravate the symptoms, which can be adjusted by taking traditional Chinese medicines internally. 1. Radix Rehmanniae Pill: mainly composed of Radix Rehmanniae, Radix Codonopsis, Rhizoma Atractylodis Macrocephalae, Radix et Rhizoma Ginger, etc. It has the efficacy of benefiting qi and strengthening the spleen (regulating the qi of the spleen and stomach), warming the middle and dispersing the cold (dispersing the cold by warming the medicine of the spleen and stomach). Adverse reactions are not clear; cold and fever people should not use; pregnant women and lactating women should not use; it is recommended to avoid eating cold things during the period of taking the medicine. 2. Xiao Jianzhong Tablet: composed of Gui Zhi, Bai Shao, ginger, etc., with the effect of warming the middle and dispersing cold, easing the pain (relieving urgent pain symptoms), mainly can treat abdominal pain, diarrhea, loss of appetite, etc., caused by spleen and stomach cold (spleen and stomach weakness and cold). Adverse reactions and contraindications are not clear; it is recommended to avoid eating cold things while taking the medicine. 3. Si Shen Wan: composed of tonic bone resin, nutmeg, schizandra, Wu Wei Zi, Cornu Cervi and so on, with the effect of warming the spleen and kidneys, astringent and antidiarrheal (relieving diarrhea by enhancing the astringent function of the intestines), it can mainly treat diarrhea and abdominal distension caused by deficiency of yang qi of the spleen and kidneys (deficiency of yang qi of the spleen and kidneys). Adverse reactions and contraindications are not known; caution is advised against taking cold and cold food while taking the medicine; caution is advised against sexual intercourse. If you feel unwell and need to take medication, it is recommended to go to the hospital for consultation and use the above medication under the guidance of a professional doctor who can identify the symptoms.