Possibly be an infection?

I was pulling a grill, it was a gas grill with two additional burners. I was pulling the end with the burners, and the burner part slid back and smashed against my finger. The result was it ripping off the skin right under the nail bed around the cuticle area. it was around thrusday when I was injured, and now since it's sunday the area which was cut is now yellow and dried up, while the surrounding skin is now swollen and red. I can't see a doctor until tuesday, is there anyway I can make it better until tuesday??