Vulvar or vaginal itching should not occur in early pregnancy. If vulvar or vaginal itching occurs at the beginning of pregnancy, it is mainly due to inflammatory diseases or allergies. If the patient, in addition to vulvar itching, is accompanied by an increase in leukorrhea, which is yellowish green and purulent or tofu-like, and localized itching and redness of the vulva, it is mainly considered to be caused by inflammatory diseases. Because after pregnancy, the patient’s resistance is relatively low, so it is easy to suffer from inflammatory diseases of the vagina. In this case, the patient must do gynecological internal examination, and at the same time take the white tape for laboratory tests to determine the type of inflammation, and then choose the appropriate antibiotics for treatment. If the patient’s vulvar itching is accompanied by localized redness and swelling, but there is no abnormality in the leukorrhea, and it occurs after using special pads, or changing to new underwear or underwear, it should be considered that it may be caused by allergy to these items, and you can choose to use dexamethasone ointment to apply locally and externally.