If the vaginal discharge is like milk, it is mostly due to localized inflammation of the vagina. The most common clinical cause is inflammation of the vaginal mucosa caused by a bacterial infection. It is recommended that routine tests of the leukorrhea be done, and if necessary, a bacterial culture of the secretions plus a drug sensitivity test can also be done, and then medication can be given according to the results. Before the results of bacterial culture come out, you can use bicuculline lotion to douche the vagina, and then you can insert metronidazole suppositories into the vagina for treatment. Metronidazole suppositories can treat trichomonas infections, bacterial vaginosis, and Candida infections, and also play a certain inhibitory role in mixed bacterial infections, so use metronidazole suppositories for treatment first. Wait for the results of bacterial culture to come out, and then find out if you need to change to other antibiotics for treatment.