Bonajour Extreme Spot Serum, a failed purchase made with my own money

I bought this from a natural cosmetics brand called Bonajour. I've been using their toner and moisturizer well, so I decided to try this product since it's a popular item. However, maybe because my skin is sensitive, my face stings when I apply it, and sebum starts to build up the next day. I bought a large size, but now I don't know what to do with it.