For tooth sensitivity, you should use a desensitizing toothpaste containing active ingredients like potassium nitrate or arginine. These help block the pain signals from your tooth surface to the nerve. Additionally, using a sodium fluoride mouthwash can help strengthen your enamel. Brush gently twice a day with a soft-bristled toothbrush and avoid highly acidic foods. For temporary mild pain relief, over-the-counter ibuprofen or acetaminophen can help. While these treatments provide relief, please schedule a routine visit with your dentist to rule out underlying issues like cavities or gum recession.