STD??? YEAST???

so i went to my normal doctor and found out i had a yeast infection. however it’s lasted well over a week after taking medication prescribed and using cream. i had gotten my period shortly after and while the flow was heavy i hadn’t felt uncomfortable. however now that my period is ending i feel uncomfortable again and feel like it could still possible be there.

should i be worried? should i be concerned as this something more like an STD? (i’ve only been w my boyfriend and he does not have an STD)

what should i do?