I’m on rigevidon and haven’t had this issue, sometimes when I ovulate discharge is a little stronger smelling but nothing unpleasant and only lasts about two days , if it’s persistent maybe check what could be causing it, are you using strong scented soaps that could affect pH? Tight clothes and underwear that isn’t breathable/cotton could cause a pH imbalance too? It could be Bacterial Vaginosis in which case go to your doctor and see if you can get antibiotics if it is BV Xxx