Hello and welcome i really appreciate your concern vaginal itching could be due to any of following STI like yeast infection bacterial vaginosis or trichomoniasis infection You can the medicines for the yeast infection as well as antibiotics for other infection infection can reappear or an antibiotics resistant strain may be a source of infection in my opinion you should visit gynaecologist for examination and lab investigations like urine test for culture and sensitivity and a swab yest according to lab reports you may require a course of antibiotics under supervision of your doctor have plenty of fluids maintain good hygiene practice safe sex use condom I hope you will find my response informative and helpful please feel free to ask for a direct question to me I will gladly answer you wishing you good health Dr BR Hudda