You are saying to have had urinary tract infection
and got treated most probably with an antibiotic.
The antibiotics has caused imbalance of the normal flora in your bowels and vagina too leading to flourishing of candida (fungal) infection.
At this point, other than taking local treatment, you need to start itraconazole
treatment 1 tablet every week for 4 weeks (this is what I usually prescribe).
You have to be patient as you are only on the 3-rd day and you have not treated your problems well til now.
If no improvement, must consult OG specialist.
All the best!