Sun Blister on Lip: Swelling, Symptoms, Treat, and More

A blister on lip from sun is a common problem that might develop after walking outside exposed to direct sunlight. Sun damage on your lips can make your lip to become dry, cracked or chapped.

In addition, sunburned lips can develop fluid-filled blisters, bumps, dark spots, age spots, white patches, freckles, and wrinkles that can really annoy you. Sunburn blisters on your lips can make your lips to appear less attractive hence this is a major beauty and health problem.

Naturally, your lips have a delicate thin skin called mucous membrane. This makes it more susceptible to develop sunburns when you are exposed to sun’s rays. Both lower and upper lips of your mouth can be affected by sun damage to form a sunburnt blister.

Sunlight contains harmful UV rays that can burn your lips seriously. UV rays from the sun can lead to an acute effect on your lips that include mild sunburns, tiny red dots, white patches, dark spots, dryness and chapped lips.

The high intensity of sunlight can lead to severely sunburned lips. This includes the chronic effect of UV rays on your skin. A serious sunburned lip can develop severe burns, premature age spots, freckles, and wrinkles that are more permanent and difficult to go away on its own.

What are the dangers of sun blister on lip

There are various problems that are associated with sunburned lips. These problems involve both health and beauty problem. Being conversant with the danger of UV rays on your skin can help you to avoid and escape the problem of a blister on lip from sun.

They include:

  • Dry and chapped lips: You can develop scaly white lips as a consequence of sunburned lips. This can lead to cracking and bleeding lips
  • Angular cheilitis: This is a condition where the corners of your mouth become cracked and develop painful sores.
  • Lip cancer: UV rays from the sun can lead to the development of malignant cell on your lips in form of bumps and blisters.
  • Melasma: This condition occurs when your lips develop white patches of sunburns that might make your lips appear leathery.
  • Freckles: Your sunburned Lips can develop Dark pigmented spots, dots or patches due to excess production of melanin on your skin caused by UV rays.
  • Wrinkles: Sub Blister on Lip can make your mouth lips to develop strange grooves and tiny lines of channels.
  • Age spots: Also called liver spots. This is black marks that can appear on your lips due to the effect of sunlight.
  • Actinic keratosis: This condition is associated with dark raised bumps on the affected area of your skin.

Signs and symptoms of sun blister on lip

You can use various signs and symptoms to know if the blister on lip is from sun. These include:

  • Dry and chapped lips after exposure to sunlight
  • Itchy or burning sensation of the skin of your lips
  • Painful fluid-filled burnt blister on your lip
  • Red inflamed or swollen lips
  • Peeling of the skin on your upper or lower lips
  • Bumps or raised spots on vermilion zone of your lips
  • Dark dots, spots, patches on vermilion surface of the lips
  • Wrinkles, fissures, cuts, or grooves on the skin of your lip
  • Oozing sore that crust over the lip surface
  • Pain on lips while eating or speaking
  • Splitting and cracked canners of your mouth with sores

These symptoms may vary from one person to another depending on the effect of sun damage. They can be mild or severe. Acute effect of UV rays on your lips can lead to mild sunburnt lips while the chronic effect of sun’s ray can result in severe sunburnt lips.

Risk causes of sun blister on lips

Your lips can develop a blister from sun when you are exposed to various risk factors. This factor is associated with the inability to escape sunlight or your skin is unable to withstand the effect of UV rays from the sun.

The common risk causes of sunburnt lips include:

  1. Exposure to sun’s rays

The delicate skin of your lips can develop a blister from the sun due to the consequence of long and direct exposure to sunlight. Long hours of direct exposure to UV rays might encourage your skin to develop sun blisters.

  1. Photosensitive skin

Your lips can form blister when you are photosensitive to sunlight. Typically, this can occur as an effect of allergic reaction that might occur. The UV rays can trigger an allergic reaction on your skin that can lead to blisters, bumps, and dark spots on your lips.

  1. Activated sore on lips

Sunlight can activate dormant cold sore virus on your lips to cause the outbreak of cold sore infection. The herpes virus that leads to cold sore or fever blister can stay in your body in a dormant state but they can be triggered to cause the infection after activated by the trauma of UV rays on your lips.

  1. Genetic factor

Albinism is a genetic factor that is characterized by lack of skin pigment or melanin. When your skin lacks melanin, it means you are vulnerable to develop sunburns on your lips and other parts of your body.

  1. Lighter skin tone

The disadvantage of having light skin complexion is that you might develop easily a blister on lip from sun. Your lighter skin with less amount of melanin might not be able to tolerate the effect of UV ray hence sunburns could be common to you.

  1. Habit of licking your lips

Licking your lips regularly can remove all the skin oil that can reflect away sunlight hence you might encourage UV rays to burn your lips. Dry, chapped and sunburnt lips can be common to you when you are having a bad habit of licking your lips continuously and regularly.

Sunburned Lips VS Cold Sore

Your sunburned lips can develop blisters that might appear similar to the cold sore. Your sun blister on lips can become filled with fluid, burst, ooze out and crust over on your lips. This can confuse you with cold sore infection.

Cold sore infection is not caused by is caused by Herpes Simplex Virus type 1 (HSV-1). However, the dormant herpes virus in your mouth can be activated by sunburns on your lips to cause an outbreak of blisters on the surface of your lips.

Sun Blisters On Lip Vs Cold Sore

Sometimes your lips can develop sun blisters that might appear like a cold sore infection. However, a blister on lip from sun is can appear when your lips are damaged by sunlight while the cold sore infection is caused by herpes virus.

It is advisable to seek the help of your doctor to help you in diagnosis and treatment when your lips develop sun blisters that appear like a cold sore. Occasionally, sunlight can stimulate cold sore infection to occur on the surface of your lips.

How Long Do Sun Blisters On Lips Last?

The healing period of sunburnt lips depends on the degree of the burns. Mild sunburns on your lips can take about 1 week to heal completely. Severe sunburns on your lips might take a long duration of about three weeks or more to heal.

With the help of treatment methods, a blister on lip from sun can last few days. Treatment can help to facilitate the healing of your bunt skin by soothing and relieving inflammation. Medical treatment and home remedies are methods you can use to cure sunburnt lips.

Sun Blister on lip Treatment

You can treat sun blister on your lip using various methods. You can go for medical treatment in case your lip has severe sunburnt blisters that are likely to advance to a more serious health problem. You can visit your doctor to help you in diagnosis and treatment of your problem.

The common treatment that your doctor might give you that can help to cure sun blister on lip include the following:

  • Anti-inflammatory drugs that can help to relieve pain and reduce inflammation of your lips. Common anti-inflammatory drugs include ibuprofen and acetaminophen.
  • Antibiotics oral drugs and ointments cream that can help to prevent the infection of bacteria to the burnt skin area of your lips.
  • Prescription of cooling gel such as Aloe Vera, menthol, and Camphor that can help to soothe itchy skin on your lips to facilitate the healing process.
  • Prescription of Corticosteroid creams that can help to treat severe sunburns on your lips.
  • The surgical incision that can help to drain out fluid-filled bumps on your lips.

How to Treat Swollen Sunburned Lips at Home

You can use various home remedies to treat sun blister on lip that include the following:

1. Aloe Vera

The Aloe Vera has the anti-inflammatory properties that can help to relieve sunburned swollen lips. The cream or gel of Aloe Vera is an excellent cooling and soothing natural remedy that can help to ease pain and irritation of sunburned lips.

How to use:

  • Wash your lips with cold water and pat dry it
  • Apply Aloe Vera cream or gel to the affected parts of your lips
  • Leave it to stay on your skin for the whole day or night before rinsing it off
  • Repeat this treatment two times daily until you are relieved

2. Cold compress

Use ice cold water to cold compress your lips after sunburn. This remedy is effective and it can help to relieve swollen lips. Also, it can soothe and cool painful or burning lips.

How to use:

  • Put one cup of ice cold water in a small basin
  • Soak a clean washcloth into the basin water
  • Cold compress your burnt lips several times
  • Repeat to cold compress it until pain stops

3. Manuka honey

Raw or Manuka honey is an excellent home remedy that you can use to relieve sun blister on lip. The natural ingredients of raw honey have anti-inflammatory and cooling properties that can help to treat swollen sunburned lips.

How to use:

  • Get 2 teaspoons of honey
  • Apply it to your affected lips
  • Allow it to sit on your lips for about 15 minutes before you rinse it off
  • Apply it three times daily until you swollen lip get relieved

4. Olive Oil

You can try olive oil as a remedy to treat your swollen sunburnt lips. The oil has antiseptic, anti-inflammatory properties that can help to cure blister on your lip. Also, it can help to moisturize dry or chapped lips.

How to use:

  • Get one teaspoon of olive oil
  • Wash your lips careful with cold water and pat dry it
  • Dap the oil to the affected area of your lips
  • Allow it to stay on your lips for more than 30 minutes before you rinse it off
  • Repeat this steps three times daily until your swollen sunburned lip is relieved

5. Apple cider vinegar

This reagent has natural anti-inflammatory properties that can help to treat swollen lips with sun blister.

How to use:

  • Dilute 1 teaspoon of apple cider vinegar with equal volume of water
  • Use a cotton ball to apply the solution to the affected area of your lips
  • Rinse it after 10 minutes with cold water
  • Repeat this treatment twice daily until you sunburned lips get healed completely

How to facilitate or Speed up The Healing of Sun Blister on your Lip

You can help to speed up the healing process of sunburned lip using the following measures:

  • Keep your lips clean and moisten
  • Avoid more exposure to sunlight
  • Do not eat hot, acidic or too spicy food that might irritate your lips
  • Ensure you avoid harsh lipstick that might irritate the burnt blister on your lip
  • Let it be to allow the healing without touching
  • Drain out large fluid-filled sun blister on your lip by the help of a sterilized pin
  • Use suitable antiseptic to clean your lips that are non-alcoholic
  • Take a lot of water that can help to moisturize your skin

Are Sun Blisters Contagious?

Sun blisters are not contagious and they are caused by the effect of direct and long exposure to harmful UV rays from the sun. This simply suggests that sun blister cannot spread from one person to another because this condition is not caused by any infectious agent.

Occasionally, sun blister on your lips might break to form a sore that can act as a secondary entry of infection into your skin. The blister can be infected by bacteria, fungi or virus. An infected sun blister can advance into serious skin condition that needs medical treatment.

It is advisable to avoid breaking your sun blister on lip in order to avoid secondary infection. Also, keep the affected area clean and use the prescribed antibiotics, antifungal and antiviral medication that can help to prevent the infection of your blister.

How to Prevent Sun Blister on Lip

You can prevent sunburn on your lips by using the following tips:

  • Avoid direct and long exposure of your lips to sunlight
  • Always apply sunscreen with SPF on your lips before you get exposed to sunlight
  • Use umbrella to shade your face while walking over the sun


  1. Sun blister on the lip:
  2. Treatment of sunburned lips:
  3. Treatment of sun blister on the lip:
  4. Home remedies for sun blister on lips:

Leave A Comment

Scroll Up
This website uses cookies and third party services. Ok