If the symptoms of itching down there occur during menstruation, you need to consider whether there is any gynecological inflammation. During menstruation, women’s body immunity will decrease due to a large amount of blood loss. This period can easily lead to the appearance of infection symptoms, so it is inevitable that some infectious inflammation will occur. The more common is vulvitis, vaginitis, urethritis, so generally in the time of menstruation, must pay attention to local cleanliness and hygiene and there is no sanitary napkin allergy, try to use cotton sanitary napkins and cotton underwear, as far as possible to prevent the emergence of localized inflammation, but also pay attention to strengthen the nutritional support, and eat more protein-rich and vitamin-rich foods, in order to enhance the immunity of the organism. Once the local inflammation is recommended to go to the gynecology department of the hospital in a timely manner, after the menstrual period is clean to do secretion smear examination or urine routine and other related tests to make it clear. If it is vulvovaginitis, you can usually choose herbal lotion to wash the vulva, if it is trichomonas and bacterial vaginitis, you can choose metronidazole suppositories, and if it is caused by fungal infections, you also need to consider using clotrimazole suppositories for treatment. If it is caused by urinary tract infection, you also need to consider taking oral cephalosporin antibiotics or levofloxacin. During menstruation, women must pay attention to guard against the possibility of various inflammatory lesions, do a good job of personal cleanliness and hygiene, strengthen nutritional support, improve immunity.