A tooth infection can sometimes still spread even when you're on antibiotics and if the tooth infection does spread while you're on antibiotics you need to see a dentist again or go to the emergency room.
A root canal is sometimes needed along with taking the antibiotics to stop the tooth infection from spreading as you don't want the tooth infection to spread as it can cause other health issues.
It's rare that a tooth infection will spread if you're on antibiotics but it can happen sometimes.
Sometimes an infected tooth may need to be pulled.
If a tooth infection is left untreated and then the tooth infection spreads to your jaw it can lead to an infection known as Sepsis which can be life threatening if not treated.
If your tooth infection is spreading you need medical attention to stop the tooth infection from spreading further so get to the emergency room or your dentist right away if you notice a tooth infection spreading.
A tooth infection that is left untreated can spread and get worse.
When the tooth infection spreads and gets worse then it can lead to infecting your blood and even your heart and cause serious health issues that can potentially be life threatening.
Most tooth infections are nothing to worry about and go away on their own even without treatment however in rare cases a tooth infection can be serious enough to cause a heart attack, heart disease and even death.
Usually you'll know when a tooth infection is getting worse or more severe as you'll usually have a fever and or swelling of the gums or your mouth.
If you do have a fever and swelling or one or the other go to the emergency room or get to your dentist as soon as possible so that the tooth infection can be stopped and treated.