If you have an extremely sensitive tooth and are in discomfort, again as with toothache, we would recommend that you avoid any foods which are either very hot or cold, like ice cream or hot drinks, as well as any foods which are acidic or sugary. These can aggravate sensitive teeth.
Continue to floss and brush your teeth as thoroughly as you can and rub sensitive toothpaste, such as Sensodyne or Colgate Prorelief, directly onto the affected area. You can use normal toothpaste if you don’t have a sensitive one.
Steven Neal, a dentist at Bupa Dental Care explained, “When you’re brushing with any form of toothpaste, especially sensitive toothpaste, don’t rinse it out with water or mouthwash because you’ll get rid of the benefits of the toothpaste. I would recommend leaving it for at least half an hour before rinsing.”