Why Do My Teeth Hurt When I Am Sick

Why Do My Teeth Hurt When I Am Sick

When we fall ill with colds, we feel fatigue, headache, fever, runny nose, sore throat, and pain in our teeth. This pain in teeth may be mild or sharp, or it may cause difficulties in drinking, eating, or talking. Some infections during sickness can affect our teeth and gums and cause tooth pain.

Our teeth and gums feel pain due to the immune cells and different inflammatory molecules that are produced by our body that travel through the bloodstream. Some common causes or reasons for “Why do my teeth hurt when I am sick” may be as follows:

1- Sinus pressure and congestion:

Sinusitis may be a cause of tooth pain during the sickness. Sinusitis causes the swelling of nasal passages. We blame sinusitis as a reason for tooth pain because it is located near the roots of the upper teeth. Sinuses put pressure on the roots of the upper teeth when they become congested. The pressure created by sinuses on the roots of teeth can cause sharp pain when you lie down. Sinusitis leads to pain in the upper teeth, mainly in molars and premolars, which are located near the sinuses. The maxillary sinus connects the cheekbones and the roots of teeth situated on this maxillary sinus, which is a large cavity in the skull. Teeth create severe pain when pressure occurs on the roots due to sinus inflammation, which causes discomfort.

How Do You Lessen A Toothache Brought On By Sinus Pressure?

 By doing some things, we can alleviate the tooth pain caused by sinus:

  • Use medicines that eliminate the pain of the tooth, e.g. ibuprofen or acetaminophen, which are known as Over-the-counter medications.
  • To alleviate the sinus pressure, use a warm compress on the face. 
  • Try to heighten your head when you are lying down in bed for sleep. By doing this, it will reduce the pain in the sinuses.

2- Tooth grinding and clenching:

Tooth grinding and clenching is also known as bruxism. Some people grind their teeth in sickness when they feel stressed or discomfort, which may increase the grinding of teeth, especially at night. Bruxism can cause the decay of enamel, exposing the nerves of teeth, and may cause pain in teeth. Moreover, bruxism can cause headaches, pain in the ear, jaw pain, and stress in the muscles of the jaw.

3- Dehydration and dry mouth:

Dehydration means the lack of water in the body. Many illnesses, including fever, diarrhea, and vomiting, cause dehydration. In this case, our body loses more fluids. During dehydration, our mouth becomes dry, and fluid in our mouth becomes viscous, which alleviates the flow of saliva. Saliva helps to compensate for the bacteria and acids in our mouth, which cause gum disease and tooth decay. Our teeth feel more sensitive or painful when there is no saliva in our mouth. 

4- Medications:

If we considered the medications as the reason for “why do my teeth hurt when I am sick?” then there may be no doubt. During sickness, if you are taking medicines for recovery, the medication may have side effects on your oral health. Using the same antibiotics and decongestants can dry our mouth or change our taste sense. Medications like ibuprofen and aspirin can disturb our stomach, which may increase the acid flow, which can damage our teeth. This pain will be mild or severe. 

5- Secondary infections:

Secondary infections may be caused by some primary infections like flu, cold, and fever in our teeth or gums. This is caused by bacteria or acids that occur in our mouth; when these enter the damaged area of the oral cavity, they cause an abscess, a pus that gathers on the nerves of the teeth when pressed causes tooth pain if you notice the secondary infections than you should see the doctor as soon as possible.

6- A fever is linked to tooth pain:

An increase in the temperature of the body during the fever can lead to tooth pain because as the temperature of the body increases, the blood vessels expand in our gums. This may cause inflammation or pain in the teeth. Our nerves and teeth may feel more pain or become sensitive when the blood flows through these vessels.

How To Help a Toothache When You Have a Fever?

How To Help a Toothache When You Have a Fever

To reduce the pain of teeth during sickness, follow some methods:

  • To alleviate the pain, use medications like ibuprofen or acetaminophen; these will reduce the tooth pain.
  • Use water or fluids in high quantity so that the case of hydration does not occur.
  • Try to use a warm cloth, place it on the face, and compress the fabric. By doing this, you will feel comfortable, and the pain of the gums will be reduced.
  • Brush the teeth daily; smoothly brushing the teeth may remove plaque or bacteria from the tooth, which may cause tooth pain.

When you feel the fever, then try to keep it under control 

  • by using medications.

7- Comfort food might hurt your teeth:

Our food can also be the reason for tooth pain. Changing the diet during sickness causes tooth pain because some drinks and food can cause tooth cavities or damage to the protective layer of the tooth. In the case of sickness, people may like to use sugary or acidic food, which causes damage to tooth enamel. Using sugar can increase tooth decay because bacteria combine with sugar, which can erode the protective layer and cause tooth pain.

Another reason why my teeth hurt when I am sick may be not properly brushing or flossing as usual. This may cause the creation of plaque, which is a painful problem. 

How Do You Reduce Pain Associated With Diet?

If the changing of diet causes tooth pain, then some of the following instructions may help to reduce the pain:

  • Do not use food and drinks that contain acids or sugar.
  • To remove the plaque and bacteria from the teeth, try to floss and brush the teeth daily.
  • Try to use those toothpaste and mouthwash that are especially for sensitive teeth.
  • Increase the use of water or drinks so that the saliva will not be viscous and will neutralize the acids in the mouth.

8- A dental infection may be to blame:

A dental infection may be a reason for “Why do my teeth hurt when I am sick?”. In sickness, dental infections like abscess gum infection may produce sharp and severe pain. In the abscess, there is the pus on the tooth caused by bacterial infection. And the gum infection is the infection of gums and other structures that are connected with teeth. The gum infection is caused by plaque and bacteria. These infections may cause sharp or severe pain in the teeth and gums and may cause swelling of the gums. It also provides the problem of opening the mouth.

Bacterial infections cause dental infections, so in these cases, we should contact the doctor as soon as possible. If we leave these infections untreated, then these infections may be spread to other parts of the body, which may be a severe problem.

How Do You Reduce Pain Caused By Dental Infections?

To reduce the pain of teeth caused by the various dental infections, follow some instructions:

  • Use medications such as ibuprofen to alleviate the pain.
  • Try to clean the area that is affected by the infections by brushing or flossing.
  • If you see that home remedies cannot control the pain, then you should visit the dentist as soon as possible.


In the interval of sickness, if you are feeling tooth pain, you must find out the reason for the pain and try to alleviate this pain with home remedies. After exploring different remedies, if the tooth pain is not finished, and in another case, if the tooth pain is severe, then you should see a doctor soon. If dental issues cause tooth pain, then the doctor will advise you according to that infection.

Leave a Comment