### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I ve been congested and coughing for about 2 1/2 weeks. For the past week when I sneeze or blow my nose or even just so my teeth actually hurt like I had root canals done on all of my teeth. Tonight I went into a coughing spasm, I coughed that hard that I got a weird feeling an blacked out for a few seconds. My head hurts, I feel really weak and my face feels has a hot feeling ,but my temperature is 98.9. Could I have broke a blood vessel in my head from coughing so violently and why do my teeth hurt so bad? What could I have and what should I do?

### output:

Hello, I can understand your concern. As you have got root canals on all of your teeth, if the treatment has been done well, there is less chance that the teeth can cause pain as they have become non-vital after root canal treatment. In addition, the root of the upper molar teeth lie near to or inside the maxillary sinus. So when the maxillary sinuses are congested sue to could and sinusitis, they cause pressure on the teeth and cause pain. When you cough or sneeze or blow your nose, the fluid moves inside the sinus and that causes severe toothache. When your cold and sinusitis will get cured, you will find relief in toothache. You have not broken any blood vessel in brain so do not worry about that. Thus, I would advise you to take Azithromycin 500 mg (AEE 500) once a day for 3 days along with Levocetrizine 5 mg (Exocet) once a day for 5 days. You can also use nasal decongestants. Hot water vapor inhalation will help a lot in clearing sinuses. If you do not feel better in 5 days, you should visit an ENT specialist for further investigations and treatment. If the teeth keep paining after clearing sinuses, you should visit a dentist to follow up on the teeth for re-infection in the root canals. I hope this information helps you. Thank you for choosing Chat Doctor. I wish you feel better soon. Best,