Probiotics generally take 1-2 weeks to see the effect, after the symptoms disappear, maintain 2-3 days to stop the drug, depending on the patient’s individual situation may vary. Probiotics mainly include lactobacillus, bifidobacterium, lactobacillus acidophilus, actinomycetes, yeast, etc. They can promote the digestion and absorption of nutrients, maintain the balance of intestinal flora structure, improve the immunity of the body, inhibit intestinal inflammation and protect the intestinal mucosal barrier. The effect can be seen in 1-2 weeks of general consumption, which may vary slightly from patient to patient. However, it is not recommended to take it continuously for a long time, generally not more than 3 months, so as not to form dependence and resistance, and aggravate the symptoms of diarrhea and constipation. Probiotics are best taken within half an hour before a meal or with a meal, while taking care that the water temperature is not too high. After taking for a period of time, if there is no obvious effect, you need to seek medical attention.