Blisters are bubble like protrusion on the skin/tissue surface containing fluid. Usually, blisters appear in a circular shape with clear or bloody liquid underneath them. These fluid-filled blisters can grow on any body part, including the throat.

Usually, it is a source of pain and discomfort widely seen in conditions when one suffers from a cold, strep throat, allergies, etc. Let’s explore the reasons and treatments for ulcers or blisters growing at the back of your throat.

Coxsackievirus In People – Common Reason for Blisters In Throat

Usually, children suffer from the wrath of Coxsackievirus; however, that does not mean it spares adults. This virus is the reason why blisters, be it red or white (bloody or clear), appear on the throat. The symptoms that indicate its presence include:

  • Headaches
  • Fever
  • Muscle pain
  • Sore throat
  • Nausea or vomiting
  • Pain in the abdomen

Conditions related To Coxsackievirus

Herpangina – a contagious infection that mostly hits children rather than adults and leads to ulcers or blisters on the throat and roof of the mouth, making them sore.

Hand, foot, and mouth disease is typically seen in children of 5 years or under, but it may also affect adults. Some of the signs include fever spikes, mouth blisters, and a skin rash.

Hemorrhagic conjunctivitis – extremely contagious eye infection that results in eye pain followed by red, itchy, watery eyes along with swelling, sensitivity to light, and blurred vision.

Other Conditions That Cause Throat Blisters

Other reasons for ulcer formation on the tonsil or throat include:

  • Deficiencies of certain vitamins
  • Allergies
  • IBS – inflammatory bowel disease
  • Behçet’s syndrome
  • Smoking tobacco or using its related products
  • Certain therapies such as chemo or radiation therapy

Remedies To Combat The Bumps or Ulcers At the Back Of Your Throat

Try these home remedies to ease your throat pain.

  • Street clear from having spicy, hot, and acid-containing food and beverages. Instead, it is better that you increase your intake of cold dairy products such as milk or curd. This will help soothe and coat the throat to protect it.
  • Substitute your regular mouthwash and rinse your oral cavity with a salt water solution.
  • Brush your teeth after every meal using a soft bristle brush.
  • Eliminate the usage of mouthwash with alcohol as an active ingredient. Alcohol has the tendency to cause irritation to the throat ulcer further.
  • Stop smoking
  • No alcohol
  • Try OTC – over-the-counter pills like relievers and antacids.

Can One prevent throat ulcers?

If an underlying condition is driving the growth of throat ulcers, you may not be able to prevent them. However, you can take certain measures to reduce the risk of developing them:

  • Practicing good hygiene, wash your hands periodically.
  • Safe oral sex with a barrier method.
  • Having a balanced nutritional diet.
  • Alcohol cessation.
  • No smoking of tobacco or using any product that contains it.
  • Rational use of NSAIDs – nonsteroidal anti-inflammatory drugs.
  • Do not consume spicy foods as it can worsen throat blisters.


Sore throat and ulcers are common in both adults as well as children due to various reasons. If your oral cavity is suffering from discomfort, try contacting Dr. Jeevandas Ghatnekar’s dental setup, a trusted dentist in Irvine, for help.

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