Never ignore a toothache. If your tooth hurts, even intermittently, call your dentist so he can do a full exam and diagnose the cause. A toothache is almost never a sign of something serious, but it is a sign something is wrong. If left untreated, your toothache and the condition that is causing it can become worse.
 
In the Meantime
 
Treat the pain and inflammation until you can get in to see your dentist.
 
Rinse with warm salt water and gently floss to dislodge any trapped food particles
Take an over-the-counter pain reliever, such as aspirin or ibuprofen 
Apply a topical dental pain reliever containing benzocaine directly to the tooth and gum 
Soak a piece of gauze with oil of clove (eugenol) and apply directly on the sore area
Take a decongestant, such as pseudoephedrine, if your pain is due to sinus congestion
 
When a Toothache Is an Emergency
 
Seek emergency treatment if you experience any of these symptoms with your toothache.
 
Swelling in your face or jaw. The infection could be worsening or spreading. 
Chest pain, dizziness, lightheadedness, or other signs of a heart attack
Wheezing, a lingering cough, or coughing up blood, which may be signs of lung cancer
 
Treatment
 
Your Eagan dentist will look for the location and cause of a toothache and check for signs of swelling, redness and obvious tooth damage. 
If decay is causing your toothache, your dentist will drill away the decay and fill the cavity. 
If your tooth has progressed to an infection, treatment will likely be root canal or extraction. Antiobiotics may be administered for an infection. 
An impacted tooth may require surgical removal. 
If the dentist can’t find the cause of your toothache, you may receive a recommendation to see your doctor for further diagnosis and treatment.