Vitamin B2, also known as riboflavin, can prevent and treat diseases caused by vitamin B2 deficiency, such as xerostomia, dry and cracked lips, tongue inflammation, scrotal inflammation, conjunctivitis, seborrheic dermatitis, etc. The dosage is for oral intake, 1-2 tablets per adult, 3 times a day, and it is recommended to take it when you are doing the eating or after the meal. Vitamin B2 is a water-soluble vitamin that is easily digested and absorbed, does not accumulate in the body and is excreted, so it is often necessary to supplement with food or nutritional supplements. Vitamin B2 is widely available in various types of food, but usually the content in animal food is higher than plant food, such as liver, kidney, heart, egg yolk, eel and milk of various animals. Many green leafy vegetables and legumes also contain more, and cereals and vegetables in general contain less. Therefore, in order to fully meet the needs of the organism, in addition to the use of animal liver, eggs, milk and other animal foods as much as possible, you should eat more fresh green leafy vegetables, a variety of legumes, and use a variety of measures to minimize the loss of vitamin B2 in the process of food cooking, storage. Riboflavin deficiency in humans is mainly manifested in the lips, tongue, oral mucosa and perineal skin at the inflammation, so there is oral reproductive syndrome called. In addition, riboflavin deficiency during pregnancy can also cause fetal bone deformities. Specific medication should be combined with clinical, subject to the guidance of the doctor’s interview.