yeast infection?

For like the past 2 days my labia and clit has been itchy and I thought it was just from my period pad.
But today it's been even more itchy, feels sore and when I looked my vagina was redder than normal and I'm producing a white/yellow/grey discharge that's a bit thick and flakyish I'd say. It also burns a little when I pee. Could this be a yeast infection? 
What could I do to get rid of it because I'm so uncomfortable down there.