Lactose intolerance, also known as lactose intolerance, can be improved through dietary modification and medication. 1. Dietary adjustment: It is the main treatment for lactose intolerance. Patients with lactose intolerance have insufficient secretion of endogenous lactase enzyme, which will lead to impaired digestion and absorption of lactose, and it is recommended that patients should reduce or limit the consumption of lactose-containing products, such as milk, bread, margarine and other foods, and patients should read the labels of the products carefully before eating, and choose the food carefully. 2. Medication: Lactose intolerant patients may have symptoms such as bloating, abdominal pain and diarrhea. Some medications can relieve patients’ unsuitable symptoms, lactase, probiotics such as Bacillus licheniformis and Bifidobacterium bifidum. Dietary supplements of vitamin D and calcium are also helpful in the treatment of the disease. If patients are diagnosed with lactose intolerance, they should visit the hospital in time and standardize the treatment with the help of doctors, avoiding self-medication.