A toothache that causes pain in the temples and in the entire half of the face and skull indicates that the tooth is suffering from pulpitis. In the acute phase of pulpitis there is severe radiating pain and usually the patient cannot locate the affected tooth very clearly. In the acute phase of pain, patients can take ibuprofen or fen-phen to relieve pain at home, or they can also hold ice in their mouths or eat ice cream to relieve pain by applying cold compresses. It is important to seek medical attention and go to the hospital to check which tooth has pulpitis and then perform root canal treatment on the affected tooth. Root canal treatment is performed under local anesthesia to remove decay from the tooth surface, open the pulp chamber, release the pressure in the pulp chamber, deactivate and remove the pulp. After this step, the severe pain caused by pulpitis is relieved to a great extent or even disappears completely. After the root canal treatment, the tooth will be cleaned, disinfected and filled closely.