Blister on Lip | Causes, Symptoms, Treatment

Blister on Lip | Causes, Symptoms, Treatment

Lip blisters are widespread. Most of us suffer from these small yet painful blisters on lips at some point during our lives. One day you wake up and find a blister on your lip. What do you do? Don’t panic! This article will help you know what a blister on your lip is and how to treat it effectively.

What is a Lip Blister?

A lip blister is a painful inflammation of the outermost layer of the lip. The inner layers of the lip remain unharmed and, therefore, can continue to function normally. 

In most cases, it is due to friction between the upper teeth and the lower lip while eating or drinking, dental appliances, teeth grinding, or poorly administered intramuscular injections from a novice. In some cases, blisters can signify underlying diseases, such as syphilis or oral cancer.

Causes of Blister on the Lip

A combination of various factors causes blisters on the lip. An injury usually causes blisters on the lips. There are several reasons why a blister may occur on your lips. Some of them are:

Are There Any Symptoms of a Blister On the Lip?

Several factors can affect how you feel and your symptoms, for example, whether this is your first time getting a cold sore. There is a range of healing times for these sores, ranging from a couple of days to two weeks. The condition is likely to recur in the same spot on the lips, but it is less severe than the initial occurrence.

Other symptoms that may occur during an initial outbreak include:

  • Fever
  • Sore throat
  • Swollen lymph nodes

What are the Possible Complications?

If blisters on lips are left untreated, it can lead to infection, which can cause pain, swelling, and pus. The condition can also spread to other areas of the body.

A weakened immune system caused by illnesses and treatments puts you at risk for complications from the virus. They may include:

  • Atopic dermatitis (eczema)
  • Chemotherapy for cancer
  • Anti-rejection drugs for organ transplants

How is Blister on the Lip Treated?

The cause of lip blisters determines the treatment. It is not necessary to treat specific reasons, such as milia and mild mucoceles. It is generally not essential to rupture blisters from sunburn, as they will heal on their own. However, to prevent infection, people should keep the blister clean.

If cysts on the skin are causing you discomfort, cosmetic options are available to eliminate them. Among these are:

  • It is possible to remove cysts by freezing them, a process is known as cryotherapy
  • Laser therapy
  • surgery
  • Doctors may prescribe antibiotics if a bacterial infection is the cause of a cyst or blister.

Infections caused by viruses, such as cold sores, often heal on their own. Over-the-counter (OTC) antiviral medications, on the other hand, could contribute to faster healing.

It is best to avoid irritants as much as possible to avoid allergic reactions. You may have to test some products to find out how the skin reacts to them. Lipsticks, skin creams, or washing detergents, for example, may contain formulations that cause skin irritation.

The blister’s pain can be relieved, and the area is kept clean by several factors. 

You can apply a topical ointment available over-the-counter. A doctor may prescribe medications to alleviate your pain and inflammation if you have a medical condition.

When to See a Doctor

Blisters on lips can be a sign of an underlying medical condition. When you are first diagnosed with blisters on your lips, it is essential to see your doctor to rule out underlying diseases, such as STIs or cancer. 

It is generally not necessary to treat lip blisters. You should, however, see a doctor if you are experiencing any of the following symptoms:

  • Your pain is severe
  • You experience irritation in your eyes
  • You still have blisters after two weeks
  • The immune system is weakening
  • Recurring cold sores are typical for you


Blister on the lip is a common ailment that causes redness and swelling of the lips. The blisters can either be inside or outside lips. Not everyone with a blister on the lips has a blistering disease. 

The blister can result from sunburn, spicy foods, allergic reactions to certain foods, medicines, or cosmetics. Blisters on lips may clear up quickly or may sometimes last for a few weeks.