I have been suffering from oral lichen planus for 10 years, with a white network at the gums of the seventh and eighth teeth on the left and right sides of the lower teeth, and I have had erosion two or three times a year for about 10 days each time. In April, the lower left corner of the left labia minora was red and congested with ulcers, which later improved. 2. Around August 20, a slight painful discharge was found at the vulva-vaginal opening, and after taking a sitz bath with cleanser, there was no more discharge, but there was a slight discomfort. At the end of September, I found that the inner mucous membrane of the labia minora was red and congested, and there was a bulge under the mucous membrane. I used green ointment mixed with metronidazole powder for external application. On October 19, Shanghai Red House Gynecological Hospital diagnosed vulvovaginitis and used ulcer powder and internal Shukang gel, the situation improved in two weeks. 4. November 2, the follow-up examination was negative for Chlamydia, negative for Trichomonas, negative for mycoplasma, negative for gonorrhea, negative for RPR, negative for syphilis antibody, but culture showed Enterococcus faecalis. After five days with levofloxacin, nifurtimox tablets and acyclovir (topical), there was no improvement, and the mucosal rupture was more serious than before, and the surface exudate increased. 5.On November 9, the dermatology department of Shanghai Huashan Hospital diagnosed suspected leukoplakia and prescribed Jin Gui lotion (stopped using it after two days of redness and ulceration), thymus too enteric soluble tablets, compound polymyxin b ointment, compound glycyrrhizin tablets (because after taking this medicine during the treatment of oral lichen planus, the blood pressure was high to 100-160 so I did not take it). 6, November 10 to Shanghai Huadong Hospital: routine blood c-reactive protein 6.6 blood sedimentation 19 (immune data at the beginning of this year in Nanjing Gulou Hospital were normal). Urine routine leukocyte ++, leukocyte microscopy 10_15. Urine test on November 18 was normal. On November 30, the left side of labia minora was back to normal, and the right side was basically fine.7 On December 8, the vaginal bacterial culture was checked, and there was no flora.8 On December 13, the inner two sides of labia minora were found to be red in the mucous membrane. I have a transient itchy sensation occasionally, and I am applying chrysin ointment or ulcers. Please teach me how to treat it? Doctor: Your disease may be Behcet’s disease, also known as oculo-oral-genital syndrome, the cause of which is unknown, mainly due to capillary lesions. In the acute phase, corticosteroids can be used to promote ulcer healing, such as prednisone 20-40 mg per day; to prevent recurrence, small doses of prednisone 15 mg per day are given for long-term application.