Tooth pain generally requires a visit to our office but here are some ways to alleviate your pain in the meantime. Use a piece of dental floss to gently loosen any debris that may be contributing to pain and inflammation around the sore tooth Make a salt water rinse using a cup of warm water and ½ teaspoon of salt. Swish and spit. Take an over-the-counter pain reliever. Relieve swelling with a cold compress on the cheek on the outside of the sore tooth. Over-the-counter numbing toothache gels that contain benzocaine can be used for short term relief. Clove oil dabbed on the sore tooth can also be used as a numbing agent.