sun blister on lip

Sun Blister on Lip Causes, Cold Sore, Pictures, Healing, Treatment and Home Remedies

Sun blister on the lip is a common lip condition among many people during the summer season.

The emission from the sun contains harmful rays that can result in the formation of fluid-filled blisters not only on the lips but also on the face.

The amount of time exposed to the sun and type of skin will determine the severity of fluid-filled blisters on the lips.

Dark skinned people especially the African Americans are at the low risk of getting lip blisters due to the sun as compared to the natives who have fair skin.

Is this post you will learn some of the reasons why you get lip blisters from the sun, differences between cold sores and sun blisters, how long they do last and typical home remedies that can help to get rid of them.

What Causes Sun Blister on Lip?

Constant and prolonged exposure to the harmful UV rays from the sun can result in the formation of sun blisters on the lips.

The lip condition is known to be common among people with fair skin but it can also happen to people with dark skin.

You should note that sun blisters can appear anywhere on the body not only on the lips. These blisters usually take a couple of days before appearing on the affected part of the body.

Some of the common factors that are known to increase the chances of appearance of lip blisters from the sun include:

  • Being dehydrated
  • Not applying lip balm or sunscreen and
  • Sunburn on lips to cause the blisters

According to doctors on the mayo clinic, the lower lip is highly susceptible to sunburn. You may also experience pain and this can increase the risk of getting cancer.

According to medical experts, the lower lip is 12 times susceptible to cancer than the upper lip.

It is advisable to reduce the time of exposure to the sun in order to reduce the chances of getting sunburn and blisters on the lips. You can also apply lip balm and high SPF sunscreen on lips.

Sun Blister on Lip Vs Cold Sore

In most cases, sun blisters usually look like cold sores but this is not the case.

Cold sores are also known as fever blisters and are caused by herpes simplex virus type 1 while sun blisters occur due to damage to the skin by UV rays from the sun.

According to doctors on WebMD, most people usually get herpes simplex virus type 1 at childbirth.

During the early stages, you may develop fever and mouth ulcers that later result in cold sores in life.

Cold sores can also be caused by a number of factors just like the sun blisters.

Prolong exposure to the sun can also trigger the formation of blisters on the lips that later turn into cold sores.

Cold sores not only occur on the lips but also inside the nose. These small bumps are usually painful and form sores when popped.

According to doctors in the American Dental Association, these blisters usually dry to form a yellow crust that heals after 2 weeks.

You should also note that cold sores are highly contagious hence can be transmitted from one to another without the presence of the virus.

Majority of infected children, the virus will remain inactive until adulthood where the cold sores will develop.

Note: You can read my article about cold sores on the nose and understand the causes with their respective form of treatment to adopt at home.

Sun Blisters On Lips Pictures

The severity of sun blister on lip will vary from person to another. The location of these blisters also varies since they can also appear inside the nose or on the nose.

Here are some pictures that show the various places where sun blisters on occurring.

How Long Do Sun Blisters Last?

You can develop either sunburn or sun blisters after prolonged exposure to the sun especially if you do not use being outdoors.

Most of these blisters usually pop up when the sun rays fall on the skin. Therefore, you will notice these blisters on the face, lips, and cheeks. They are usually small, red, painful and tender.

However, there is no need to get worried since most of them usually fade away without treatment.

There are some instances these blisters may last for some time in case treatment is not administered.

According to doctors on WebMD, sun blisters usually last for ten days but the effect on the skin might be longer than that. However, these symptoms are mild and might disappear after a couple of days.

Sun blisters may appear on the skin after a certain period of exposure to the sun. If you offer treatment on the affected part immediately, these blisters usually resolve immediately.

Sun Blister on Lip Won’t Heal

The healing of sun blisters on the lip usually depends on the immune system of a person.

Sometimes, there are those types of blisters on lips that won’t heal at all despite carrying out various activities that might help to foster the healing process.

This might raise concern but we recommend you visit your dermatologist for a checkup.

This could be an initial stage of oral cancer and it is recommended for early treatment in order to avoid the spread of cancer cells to other parts of the body.

Sun Blister on Lip Healing Time

The intensity of damage caused by the sun on the lips will determine the time of healing.

According to the National Health Service, mild to moderate damage on the lips by sun usually last for about 2 weeks.

Your lips may take longer to heal if they are severely damaged. This is the reason why it is advisable to consult your doctor for treatment.

How to Treat Sun Blisters On Lips

According to doctors on WebMD, these blisters usually heal on their own without any form of treatment.

We recommend you visit your health care provider in case of severe cases.

Your doctor may offer the following form of treatment to help promote the healing. These include:

  • Anti-inflammatory creams such as ibuprofen and acetaminophen to relieve the pain and reduce the inflammation. These creams can also soothe the burning sensation and get rid of the discomfort
  • For severe sunburn, corticosteroid cream applied directly to the lips may be recommended. This option should not be used for long. Prolonged use of corticosteroid cream may lead to unwanted side-effects
  • When the sun blisters are accompanied by cold sores, antihistamines may be used to relieve the inflammation
  • When the blisters are bleeding, cracked or peeling, a topical antibiotic may use to reduce the risk of picking a bacterial infection which could prolong the healing of the blisters on lips.
  • Hydrocortisone 1% cream can also be used for sunburned lips. This option should only be used when prescribed by a professional healthcare provider. Some will recommend applying it on the outer edges of the lips while others will recommend avoiding it altogether. Do not ingest the cream
  • You can supplement the above treatment by applying a moisturizer to the irritated lips.

Sun Blister on Lip Home Remedies

Here are some of the common home remedies that can help to get rid of sun blister on the lips. These remedies include:

  • Cold Compresses

It has the ability to reduce inflammation, pain, and swellings on the lips.

Applying cold compresses over the area of the Sun Blisters for 15-20 minutes two to three times a day.

Never should you apply ice directly on the lips since it can cause damage.

However, you can wrap the ice cubes in the towel then apply on the affected part of the body. This is useful since it helps to lower chance of skin numbness.

  • Aloe Vera

This is a known remedy for various skin ailments including sun blisters on the skin.

It has anti-inflammatory properties that help to get rid of inflammation and pain in the skin. It can also use to get rid of swellings on the skin.

Extract gel from the leaf of Aloe Vera then applies to the affected part of the lip. Allow the gel to dry then later rinse with sufficient water.

  • Vinegar

This is an effective home remedy that can be used to get rid of sun blisters on the face, cheek, and lips.

Obtain a solution of blister and then apply on the lips. Do these for a couple of days until the blisters disappear.

  • Oatmeal

This is another natural home remedy that can be used to treat cold sores and sun blisters on the lips.

It has the ability to soothe the skin and even hasten the healing. Add a couple of oatmeal powders in water then take a bath.

  • Turmeric

It has healing properties that help to get rid of inflammation and pain caused by the sun blisters.

Mix some turmeric powder in a few drops of water and make a paste of it.

Apply this paste on the affected area and leave it on for about 15 minutes. Then clean the area with warm water.

How to Prevent Sun Blister on Lips

There are several factors that can help to reduce the risk of getting sun blister on the lip. These measures include:

  • Maintain a proper diet; people with the weak or compromised immune system are likely to be affected by exposure to harmful rays. They are likely to not only develop sun blisters but also cold sores.
  • In cases of a cold sore, we recommend you avoid foods rich in arginine, it is said to increase the reproduction of herpes virus in the body
  • Avoid prolonged or constant exposure to the sun, especially when the sun is intense
  • If you have to go away, make sure to apply sunscreen on your face and on lips, you can also use a lip balm with high SFP
  • You can also wear a hat with a large brim to protect your lips from direct contact
  • Make sure you drink plenty of fluids to keep your body hydrated by replenishing lost fluids through sweating


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