One swollen foot?

laura

My left foot hurts on the top, especially when I walk or put weight on it. It's just all the time too, not at the end of the day, it's just all day. My right foot is totally fine. Normal? Or should I say something about it to my Dr? It's swollen, but not like a LOT. What would you guys do? I've been putting lavender oil on it this morning to see if it helps..?