Yeast Infection treated but still having discharge.

I had a yeast infection for the first time and i bought some Monistat to treat it,
but i'm still having very thin kinda clear, but white-ish discharge and a little bit of itching. My discharge doesn't smell anymore, but i can't tell if i still have an infection. Should i buy a longer treatment pack or get check out by a doctor?

thanks for any advice :]