Cold sore in the corner of my mouth

Cold sores and angular cheilitis both affect the lips and the areas around the mouth. The symptoms can be similar so let’s take a look at both conditions so you can tell the difference between the two. 

What is a cold sore?

Cold sores are widespread and are caused by the herpes simplex virus. The herpes simplex virus is passed on by coming into close contact with someone with a cold sore and is often picked up during childhood. Most people have the virus, but it can lay dormant and never cause a cold sore. Once you contract the virus, it lives inside your bloodstream indefinitely and may flare up now and again. 

Order effective treatment against cold sores

What are the symptoms of a cold sore? 

Cold sores appear around the mouth and on the lips, as small blisters. You’ll usually notice a tingling, burning or itching sensation before the cold sore appears. Within 48 hours of this, a cold sore will appear, which resembles the appearance of a blister. Eventually, the blister will burst and crust over before healing. 

Are cold sores contagious? 

Cold sores are contagious when they are visible, more so when the blister bursts and you have an open sore. However, you can pass on the virus at any time during a cold sore outbreak, so it’s best to avoid kissing, oral contact and sharing cutlery or cups until it has fully healed. In particular, avoid kissing babies as this is often how the virus is contracted during childhood. 

How to treat a cold sore 

A cold sore will disappear on its own without treatment within 7-10 days, but some treatments can speed up the process. Aciclovir is a cream that is applied to the affected area as soon as you feel a cold sore coming on (when you notice that tingling sensation). This is an antiviral cream that helps to ease the discomfort and encourage faster healing. Aciclovir is also available in tablet form if you have frequent recurring cold sores. 

Cold sores can be treated, but there is no cure for the virus. The lack of a cure means that cold sores can reappear at any time, particularly during times of stress or illness. The virus lies dormant the majority of the time, and you can’t pass it to others unless you have an active cold sore. 

What is angular cheilitis? 

Angular cheilitis is a fungal or bacterial infection that causes the corners of the mouth to become cracked and sore. It is caused by a buildup of saliva which becomes trapped in the corners of your mouth. Unlike a cold sore, angular cheilitis is not contagious and cannot be passed on to someone else through kissing or close contact. 

What are the symptoms of angular cheilitis? 

The main symptoms of angular cheilitis is a sore, irritated feeling in the corners of your mouth. This area may also be cracked and dry. You may also notice: 

• Red or swollen skin 
• Blisters 
• Crusty skin 
• Itching 
• Dryness and discomfort 
• Pain and difficulty opening your mouth fully 

What causes angular cheilitis? 

The building up of saliva, coupled with the growth of bacteria or the Candida fungus, is what causes angular cheilitis. There are certain risk factors and underlying medical conditions, which make you more likely to experience it. These are: 

• Wearing braces 
• Ill-fitting dentures 
• Crooked teeth 
• An under or overbite
• Licking your lips frequently 
• Smoking 
• Sucking your thumb 
• A lack of nutrients 
• Diabetes 
• Blood cancer
• Anaemia 
• Immune disorders 
• Down’s syndrome 
• Cancer of the lung, kidney, pancreatitis or lung

How is angular cheilitis treated? 

Depending on the cause, antibacterial or antifungal creams can treat angular cheilitis. Your doctor will be able to determine which treatment you need. You can also apply petroleum jelly to the affected area to seal in moisture and help reduce the inflammation. You do not need to avoid close contact with others during this time as angular cheilitis is not contagious. Once it is treated, the infection is cured and should not return. 

Your lips are chapped and cracked, and chapstick isn’t providing much relief. What’s causing your pain? Those blisters sort of look like cold sores, but you’re not quite sure. 

The culprit could be angular cheilitis, another common skin condition that appears on the corners of the mouth. It’s important to understand the differences between angular cheilitis and cold sores so that you can tackle your condition with the most appropriate treatment. 

What is Angular Cheilitis?

Angular cheilitis is an inflammatory condition that causes dry, swollen, red patches to develop around the corners of the mouth or on the outside of the lips. Depending on the stage of angular cheilitis, it may last only a few days or become a constant problem. 

Stage 1: Minor

During stage 1, angular cheilitis is only a minor problem. It may cause small, dry, flaky skin around the corners of the mouth or the sensation of tightness when you try to open your mouth wide. 

Stage 2: Mild

Mild angular cheilitis causes more discomfort. In addition to flaking and tightness, you will also notice redness at the corners of your mouth. 

Stage 3: Severe

If minor or mild cheilitis isn’t treated properly, it transitions into severe angular cheilitis. This stage of the condition triggers pain and discomfort anytime you try to talk, eat or open your mouth. The lesions around the corners of your mouth will become clearly visible as well. 

Stage 4: Chronic

Treatment should help severe angular cheilitis heal, but for people suffering chronically from this condition, the symptoms return again quickly. 

Angular Cheilitis vs Cold Sore: The Similarities

Cold sores, also known as oral herpes or HSV-1, cause symptoms similar to angular cheilitis. Both conditions cause redness, rawness, and inflammation around the corners of the mouth. This explains why the two are often mistaken for one another. 

Angular Cheilitis vs Cold Sore: The Differences

Once you know what to look for, angular cheilitis and cold sores do develop into distinct skin conditions. 

Oral herpes causes fluid-filled blisters to develop, not just at the corners of the mouth, but around and on the lips as well. These blisters go through five stages from emergence to healing:

1. An itching and burning feeling develops underneath the skin indicates that a cold sore is forming
2. Fluid-filled cold sore blisters develop on or around the mouth
3. The blisters burst or “weep” and release their fluids
4. The core sores dry up into a yellow and brown crust
5. Cold sore scabs heal; the skin around the mouth looks healthy once again

Angular cheilitis, by comparison, only affects the skin at the corners of the mouth. It doesn’t cause fluid-filled blisters at all, only cracked, dry, and irritated skin that becomes vulnerable to infection.

Main Causes of Angular Cheilitis

Angular cheilitis develops for a few different reasons. Most commonly, it’s caused by excessive moisture in the corners of the mouth. Dryness and irritation develop as soon as the saliva evaporates, which triggers the instinct to lick your lips and ease the dryness. Unfortunately, this just creates a damaging cycle that leads to irritation and cracked skin. 

It’s also possible for excess saliva to attract fungus such as yeast, which then grows in the corners of the mouth and causes secondary infection. 

Groups at High Risk of Angular Cheilitis

Some groups are at higher risk of angular cheilitis than others. Certain pre-existing conditions may cause excessive saliva production or trap saliva in the corners of the mouth more often. The most prevalent risk factors include:

• Diabetes
• Vitamin B complex deficiency
• Frequent use of corticosteroids or antibiotics
• Sensitive skin
• Inflammatory bowel disease

If you find yourself frequently licking around the corners of your mouth or picking scabs in that area, stay alert for signs and symptoms of angular cheilitis. 

How to Treat Angular Cheilitis

In order to treat angular cheilitis, you must first identify and treat the underlying condition responsible for triggering symptoms of angular cheilitis. 

For example, your doctor may prescribe supplements to reverse a nutritional deficiency or better eating habits to reduce high blood sugar levels. By first learning to reduce and manage any health problems contributing to angular cheilitis, you will dramatically minimize your likelihood of inflammation in the future.

For active angular cheilitis symptoms, you may need a topical treatment to clean the area and reduce dryness:

• A topical antifungal kills yeast causing infection
• A topical antiseptic keeps open cracks and wounds clean to prevent new infection
• Filler injections temporarily reduce creases around the mouth in order to prevent saliva from becoming trapped
• Coconut oil forms a barrier from saliva to prevent chapping
• Lip balms
• Mild corticosteroids in case of severe inflammation
• Moisturisers
• Barrier creams

Minor and mild cases of angular cheilitis can usually be treated at home, but severe and chronic cases require the attention of a doctor. 

How to Treat a Cold Sore

If your discomfort is the result of a cold sore outbreak, use these strategies for rapid treatment. 

Don’t Pick Your Cold Sore

Just like you can’t pick at the chickenpox, you shouldn’t pick at your cold sore! Every time you touch a cold sore, you risk spreading the herpes simplex virus to other parts of your body or other people you contact.

Picking at your cold sore also increases the risk of infection and scars. If you’re tempted to touch your blister, find a cotton swab and apply an ointment or medication for relief instead. 

Over-the-Counter and Prescription Options

Orajel™ is an over-the-counter topical gel that provides instant and targeted pain relief in and around the mouth. The Orajel™ Cold Sore formula includes six active ingredients shown to treat the pain, itching, and dryness caused by cold sores. It can be applied up to four times a day to help you stay comfortable through an outbreak. 

When over-the-counter strength won’t cut it, consider an antiviral prescription like Acyclovir. It’s available in tablet, capsule, or liquid form to decrease the pain and increase the healing time of sores and blisters caused by genital herpes and cold sores. This antiviral medication stops the spread of the herpes virus in the body, which in turn helps outbreaks heal.

The Luminance RED Light Therapy

What if you could minimize the symptoms of cold sores and prevent them in the future, all without a visit to the drugstore? The Luminance RED cold sore treatment makes this easier than ever before!

Light from Luminance RED is metabolized by your skin and turned into cellular energy, which your skin uses to heal faster and force the herpes virus into hibernation. Clinical data conclusively shows that this type of treatment reduces healing time by up to 50% so that you can get back to living your life. 

The Luminance RED can be used before, during, and after outbreaks to fight symptoms of HSV-1 and HSV-2. Thanks to the precise design of Luminance RED, every treatment provides the exact wavelength of light necessary to maximize treatment efficiency and prevent cold sore outbreaks.

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