It is usually due to dental neglect resulting in dental caries. When the tooth decay reaches the canal in the root of the tooth, nerve endings get irritated and cause pain. Ann abscess may form around the apex of the root and cause further pain. The tooth may also hurt when its outer coating is worn off and hypersensitive inner part is exposed in such cases contact with cold or very sweet substances produces pain.
- Give aspirin or paracetamol orally
- Insert a little cotton ball soaked with clove oil into the cavity of the tooth.
- Send him to a dentist