Itching of the private parts during late pregnancy is considered to be a sign of vaginitis. A routine leukological examination should be done to determine the cause of vaginal itching. If it is trichomoniasis, it can be treated with intravaginal metronidazole suppositories. If it is mycosis vaginalis, it can be treated by intravaginal application of mycoplasma pessary. In late pregnancy, the fetus is already developed and basically mature, and occasional medication at this time does not have a great impact on the fetus. In particular, if the vaginitis is too severe, it may cause intrauterine infection, which may affect the growth and development of the fetus, so moderate use of medication is beneficial to the fetus. However, if the vaginitis is not particularly serious, it is not recommended to use random medication. You can improve the symptoms of local inflammation and infection by washing, you can use red nucleus lotion or gynecological thousand gold lotion to wash the vulva to avoid the growth and reproduction of bacteria and reduce the symptoms of itching.