Why do teeth hurt when you are sick?

There are several reasons why teeth may hurt when you are sick. Some of the most common causes include:

- Sinus infections: When the sinuses become infected, the pressure can cause pain in the upper jaw and teeth.

- Ear infections: Ear infections can also cause pain in the jaw and teeth. This is because the nerves that supply the ears and teeth are located near each other.

- Viral infections: Some viruses, such as the flu, can cause inflammation of the gums and tissues around the teeth. This can lead to pain and sensitivity.

- Dehydration: When you are sick, you may not be drinking enough fluids. Dehydration can cause the mouth to become dry, which can lead to pain and sensitivity in the teeth.

- Medications: Some medications, such as antibiotics and chemotherapy drugs, can cause side effects that include tooth pain.

If you are experiencing tooth pain when you are sick, it is important to see a dentist to determine the cause and get the appropriate treatment.