If you have a toothache, here are some steps you can take. Firstly, rinse your mouth with warm salt water to help reduce inflammation and kill bacteria. Avoid eating hard, crunchy, or sugary foods that can aggravate the pain. You can take over-the-counter pain relievers like ibuprofen or acetaminophen to ease the pain temporarily. Applying a cold compress to the outside of your cheek near the painful tooth can also help. If the toothache persists or is severe, it's important to see a dentist as soon as possible. The dentist can determine the cause of the toothache and provide appropriate treatment, which may include filling a cavity, treating an infection, or performing a root canal if necessary.