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The Daily Insight

What virus causes ulcers in throat?

Author

Ava Arnold

Updated on February 24, 2026

Herpangina is a viral illness that involves ulcers and sores (lesions) inside the mouth, a sore throat, and fever.

What causes ulcers on the throat?

There are multiple causes of throat ulcers. Most are due to infectious pathogens, such as bacteria, fungi, or viruses. Other possible causes include GERD, allergies, and taking certain medications. The outlook for throat ulcers is generally good if people receive treatment for the underlying cause.

How do you treat a viral throat ulcer?

Drink cold fluids or suck on something cold, like ice chips or a popsicle, to soothe the sores. Drink extra fluids, especially water, throughout the day. Ask your doctor whether you should use a numbing rinse or medicine to relieve throat pain. Gargle with warm salt water or a mixture of salt, water, and baking soda.

Are throat ulcers viral?

Ulcers of the mouth and throat are potential symptoms of many viral, bacterial, and yeast infections and are thought to be possible symptoms of COVID-19 infection, too. It's thought that infections are responsible for about 88 percent of mouth ulcers, and they're especially common in viral infections.

Can a virus cause blisters on throat?

Herpangina is characterized by small blisters or ulcers on the back of the throat and roof of the mouth and typically affects children during the summer and fall months. An infection of the mouth and throat, herpangina is caused by a group of viruses called the enteroviruses.

Is Your Sore Throat Caused by Bacterial Infection or Viral?

What is the fastest way to get rid of herpangina?

In addition to over-the-counter pain medicines and topical anesthetics, these home remedies may help ease symptoms of herpangina:

  1. Therapeutic mouthwash. A daily mouth rinse made with warm water and salt may relieve pain and sensitivity in the mouth and throat. ...
  2. Increased fluid intake. ...
  3. Bland diet. ...
  4. Regular handwashing.

What does herpangina look like?

Herpangina usually shows up two to five days after you've been exposed to the virus. Symptoms include: White blister-like bumps in the back of the throat or on the roof of the mouth, tonsils, uvula, or tongue. Sudden fever.

What is herpangina virus?

Herpangina is a sudden viral illness in children. It causes small blisterlike bumps or sores (ulcers) in the mouth. They are often in the back of the throat or the roof of the mouth. Herpangina is often seen in babies and children younger than 10. It's seen most often in the summer and fall.

How long are throat ulcers contagious?

How long does herpangina last? Herpangina normally clears up after a week to 10 days. If your child is not getting better after 10 days, visit your healthcare provider. Although your child might not show symptoms, they could still be contagious for three to eight weeks after getting the virus.

What is COVID tongue?

What are COVID tongue symptoms? In that same British study by the British Journal of Dermatology, the following symptoms were noted: Lingual papillitis (inflammation of the small bumps on the tongue's surface) Glossitis with indentations (swollen or inflamed tongue) Aphthous ulcers (mouth ulcers)

Can throat ulcers be caused by stress?

Mouth ulcers are referred to in the medical community as “aphthous ulcers.” Stress is a common cause of mouth ulcers, and a recent study points to the relationship between mental health and oral health. “The researchers found a significant correlation between experiencing mouth ulcers and depressive symptoms.”

What virus causes sores in mouth?

Viruses are tiny germs that can cause mouth sores as well as other illnesses. Some mouth sores are caused by the herpes virus. This is one of the germs that cause cold sores or fever blisters.

Can you have blisters in your throat and it not be strep?

Most commonly, a sore throat with blisters or ulcers is due to a virus called coxsackievirus. Coxsackievirus causes a wide variety of symptoms, and while it typically affects children, adults can get it as well.

How do you get a viral throat infection?

The most common causes of sore throats are viruses. Viral sore throats are often accompanied by other cold symptoms that may include a runny nose, cough, red or watery eyes, and sneezing. Other causes of sore throat include smoking, pollution or irritants in the air, allergies, and dry air.

How long does viral pharyngitis last?

Viral pharyngitis often goes away in five to seven days. If you have bacterial pharyngitis, you will feel better after you have taken antibiotics for two to three days. You must take your antibiotic even when you are feeling better. If you don't take all of it, your sore throat could come back.

How do you treat a viral infection in the mouth?

gargle with salt water. eat ice, ice pops, sherbet, or other cold foods. take a pain medication, such as acetaminophen (Tylenol) avoid squeezing or picking at the sores or blisters.

Do adults get Coxsackie virus?

Coxsackievirus A16 (CVA16) causes the majority of HFMD infections in the U.S. It usually occurs in children (age 10 and under), but adults can also develop the condition.

What is Gingivostomatitis?

Gingivostomatitis is an infection of the mouth and gums that leads to swelling and sores. It may be due to a virus or bacteria.

What do throat ulcers look like?

A throat ulcer, or a throat canker sore, is a small, round sore that is whitish in the middle and reddish on the outside. It causes pain and discomfort, especially when swallowing or speaking. In some cases, it can be accompanied by other symptoms such as fever, general malaise and swollen lymph nodes in the neck area.

Is a throat ulcer contagious?

Are the throat ulcers contagious? While handwashing is the best way to prevent this viral infection, it can still spread through ingesting a sick patient's respiratory droplets or saliva (likely from coughs or sneezes) or exposure to an infected patient's feces.

How long is herpangina virus contagious?

A child with herpangina or hand, foot and mouth disease is most infectious during the first week of illness, but they can still spread the virus for several weeks after their symptoms have disappeared. It takes about three to six days after your child has been exposed to develop symptoms.

How do you test for herpangina?

The WBC count is usually within the reference range. Isolation of enterovirus in cell culture remains the criterion standard for diagnosis. To isolate the virus, obtain cultures from swabs of the nasopharynx. Other specimens that may produce an isolate include stool and rectal swabs, urine, serum, and CSF.

How long does Coxsackie sore throat last?

Overall, the disease usually resolves in a few weeks but some symptoms may linger longer. Symptoms like fever and sore throat last for a week or so. Hand lesions can last for two weeks, throat lesions can last for a few weeks and foot lesions can last for several weeks, notes Dr. Vyas.

What does it mean if you have blisters in the back of your throat?

Viral infections cause 60–90% of pharyngitis cases. Other viruses, such as chickenpox, herpes, croup, and mono, sometimes cause swelling and a cobblestone throat. Bacterial infections may also cause bumps at the back of the throat. Bacterial infections are more common in winter and early spring.

How do you know if you have a bacterial infection in your throat?

Pain and fever without a cough are common signs and symptoms

  1. Sore throat that can start very quickly.
  2. Pain when swallowing.
  3. Fever.
  4. Red and swollen tonsils, sometimes with white patches or streaks of pus.
  5. Tiny, red spots (petechiae — pronounced pi-TEE-kee-eye) on the roof of the mouth (the soft or hard palate)