Ozone therapy for vaginitis is mainly used clinically as an adjunctive treatment for mycosis fungoides, trichomoniasis and bacterial vaginitis. Ozone therapy uses low-temperature plasma technology to instantly decompose air into ozone and a large number of active molecules, which can directly kill bacteria, viruses and fungi. At the same time, ozone has a wide range of anti-inflammatory effects, dilates blood vessels, improves blood return, reduces local edema and inflammatory exudation, and has a repairing effect on local erosions or ulcers caused by vaginitis. 1, indications 1, mycosis fungoides: bean curd-like leucorrhea is a typical symptom of mycosis fungoides, which can be accompanied by increased leucorrhea, vulvar itching and burning pain. ozone dissolved in water will form ozone water, which will have some effect on the vaginal environment and can only play a supplementary therapeutic role. 2. Trichomonas vaginalis: Trichomonas vaginalis is a common vaginitis caused by Trichomonas vaginalis. The main symptoms are increased vaginal discharge and vulvar itching, burning and pain. The discharge is typically characterized by cellular purulent yellow-green, foamy and smelly. Ozone molecules are unstable and can decompose to produce single atomic oxygen and hydroxyl groups with strong oxidizing ability, which can quickly destroy the internal structure of bacteria, viruses and other microorganisms, and have strong killing effect on various pathogenic microorganisms, while systemic medication such as metronidazole is recommended. 3. Bacterial vaginitis: persistent white paste-like leucorrhea, accompanied by obvious fishy odor, or accompanied by vulvar itching and other uncomfortable symptoms, ozone Ozone treatment can play a bactericidal effect, patients need to use metronidazole for treatment at the same time. The number of ozone applications should not be too many, together with the use of related vaginal drugs. In addition, too much ozone inhalation is harmful to the human body and should not be used excessively. During the treatment period, pay attention to hygiene, prohibit sexual intercourse, and do review.