Metronidazole lotion is a topical antibiotic drug, which is mainly used for localized skin infections or skin disinfection, especially for eczema of the vulva with certain infections, or ringworm with certain infections for topical use, the role of the drug is mainly to resist Gram-negative bacteria and other types of local bacteria, so it is widely used in clinical practice. Since metronidazole solution has a certain anti-inflammatory and anti-itch drug in it, it has a certain effect on the elimination of itching produced by eczema or dermatitis of the vulva, but when using the drug concentration should try to pay attention to grasp, not too high. If it is too high, it may irritate the skin and mucous membrane areas causing drug damage.