Hello..I would suggest you to meet a gynaecologist first and get p/v examination done as am suspecting infection...we also need to do urine routine test...if it is bacterial vaginosis or other infection..we need to start you on antibiotics....please meet a gynaecologist first...it's difficult to suggest you medications without examining...thank you

It may be because of several reasons. You must get your cervix (mouth of the uterus) checked by doctor to confirm the diagnosis and take treatment. Avoid using ordinary soaps in vaginal area. Maintain hygiene.