Itchy.....

I’m very itchy down there. I just finished antibiotics so I’m thinking a yeast infection. Because it smelled like bread with thickish white discharge. I took a medication to treat it two days ago and it seemed to help yesterday but today I’m still itchy. There’s no foul smell either So should I take my other pink pill if the itchyness doesn’t go away by tomorrow? I have 3 and I’m supposed to take them every 3days as long as I have symptoms.

I had sex last Saturday but I don’t think it’s an STI....