Many health websites provide advice on how to treat a toothache at home, including WebMD and Mayo Clinic. Both of these websites offer suggestions for remedies involving medication as well as some drug-free treatments.
WebMD and Mayo Clinic both suggest first rinsing the mouth with warm water and then gently flossing to remove any remaining food particles or plaque. A cool compress applied to the outside of the mouth or cheek can ease swelling and pain, as can an over-the-counter pain reliever, such as acetaminophen or ibuprofen. An over-the-counter antiseptic containing benzocaine applied directly to the affected tooth and gum may provide temporary pain relief. Both WebMD and Mayo Clinic advise that if pain persists, the person should see a dentist.