A tooth infection can spread to other parts of the body, and the consequences can be severe and possibly life-threatening. Some signs and symptoms that a tooth abscess infection has spread include: - Headache or migraine - Fatigue, confusion, and dizziness - Fever, flushing of the skin, chills, sweating - Swelling of the face, impedes swallowing and breathing, difficulty opening mouth - Dehydrated, reduced frequency of urination, dark urine - Rapid heart rate, lightheadedness - Increased breathing rate (over 25 breaths per minute) - Stomach pain, diarrhea, vomiting Your doctor should be called immediately if you or your child are experiencing a high fever, which differs depending on age. - Adults – 103 F or higher - Children -102.2 F or higher - Infants 3 months and older – 102 F or higher - Infants younger than 3 months – 100.4 F or higher