Atopic Cheilitis (Lip Eczema): Why Are My Lips Always Dry, Cracked and Itchy?
By Dr Lim Tzyy Huei | Consultant Dermatologist, Pantai Hospital Batu Pahat, Johor, Malaysia
Dry or cracked lips are common, especially during hot weather, air-conditioned environments or periods of frequent lip licking.
However, if your lips remain dry, itchy, red or painful despite repeatedly applying lip balm, you may have a condition called atopic cheilitis, also known as lip eczema.
Atopic cheilitis is a form of eczema affecting the lips. It can occur in children and adults, particularly those with sensitive skin or a history of eczema (atopic dermatitis).
Although it is not contagious, the condition can be uncomfortable, affect eating and speaking, and keep coming back if the underlying inflammation and triggers are not properly addressed.
What Is Atopic Cheilitis?
Atopic cheilitis is inflammation of the lips associated with an eczema-prone skin barrier.
Normally, the skin barrier helps retain moisture and protects against external irritants. In people with atopic eczema, this barrier is less effective, making the lips more vulnerable to dryness, irritation and inflammation.
Atopic cheilitis may affect the upper lip, lower lip or both. Sometimes, the surrounding skin also becomes inflamed.
It is important to understand that not all persistent dry lips are caused by atopic cheilitis. Irritant contact cheilitis and allergic contact cheilitis can look very similar, and more than one condition may occur together.
What Are the Symptoms?
Common symptoms include:
Persistent dryness or chapped lips
Redness and inflammation
Peeling or flaking skin
Itching or burning sensation
Cracks or painful fissures
Tightness when smiling or opening the mouth
Occasional mild swelling
Darkening of the lips after repeated inflammation
In more severe cases, painful cracks may develop, making eating, drinking or speaking uncomfortable.
The symptoms may improve temporarily with lip balm but return repeatedly.
What Causes Atopic Cheilitis?
Atopic cheilitis is associated with a weakened skin barrier and an underlying tendency towards eczema.
Several factors can aggravate the condition.
1. Frequent Lip Licking
When the lips feel dry, many people instinctively lick them.
Although saliva provides temporary moisture, repeated wetting and drying can further damage the skin barrier.
This creates a cycle:
Dry lips → Lip licking → Increased irritation → More dryness → Repeated lip licking.
This is particularly common among children.
2. Lip Balm, Lipstick and Cosmetic Products
Some lip products contain ingredients that may irritate sensitive lips or cause allergic reactions.
Potential triggers include:
Fragrances
Flavourings
Menthol
Peppermint
Cinnamon
Certain preservatives
Ingredients in lipsticks and lip cosmetics
Interestingly, repeatedly applying different lip balms may sometimes make the condition worse rather than better.
3. Toothpaste and Mouthwash
Certain toothpaste or mouthwash ingredients may irritate the lips or trigger contact allergy.
Examples include flavourings such as mint or cinnamon and some other ingredients in oral-care products.
If lip eczema persists despite treatment, these products may need to be reviewed.
4. Environmental Factors
Common aggravating factors include:
Dry air-conditioned environments
Wind
Cold or dry weather
Repeated wiping of the mouth
Excessive saliva contact
Although Malaysia has a humid climate, prolonged exposure to air conditioning and frequent lip irritation may still worsen symptoms.
5. Underlying Atopic Eczema
People with eczema affecting the face, hands or other parts of the body may also develop lip eczema.
However, lip eczema can sometimes occur without obvious eczema elsewhere.
Is Atopic Cheilitis the Same as Lip Allergy?
Not necessarily.
There are several causes of eczematous inflammation affecting the lips.
Condition | Main Cause |
Atopic cheilitis | Eczema-prone skin barrier and inflammation |
Irritant contact cheilitis | Repeated irritation from saliva, products or environmental factors |
Allergic contact cheilitis | Allergy to ingredients in products touching the lips |
Angular cheilitis | Inflammation mainly at the mouth corners, sometimes associated with Candida or bacterial infection |
These conditions may look similar and can occasionally coexist.
For example, someone with underlying atopic cheilitis may also develop an allergic reaction to a lip balm.
Therefore, identifying the correct cause is important, especially when symptoms keep recurring.
How Is Atopic Cheilitis Treated?
Treatment aims to reduce inflammation, repair the lip barrier and prevent repeated flare-ups.
1. Use a Simple, Fragrance-Free Lip Moisturiser
Regular moisturising is one of the most important steps.
Plain petroleum jelly is often a suitable choice because it contains very few ingredients and helps reduce moisture loss.
Apply it several times daily, particularly:
After washing your face
After eating
Before bedtime
Whenever the lips feel dry
Avoid frequently changing between multiple lip products.
A simple formulation is often better tolerated than heavily flavoured or fragranced products.
2. Avoid Lip Licking and Picking
Try to avoid licking, biting, rubbing or peeling the lips.
These habits can prolong inflammation and delay healing.
For children, parents can gently encourage regular moisturising rather than repeated lip licking.
3. Short-Course Anti-Inflammatory Treatment
When the lips are significantly inflamed, moisturiser alone may not be sufficient.
A dermatologist may prescribe a short course of a suitable low-potency topical corticosteroid to control the inflammation.
Because the lips have delicate skin, stronger steroid preparations or prolonged unsupervised use should be avoided.
4. Steroid-Sparing Treatments
For patients with recurrent or persistent lip eczema, topical calcineurin inhibitors such as tacrolimus or pimecrolimus may sometimes be prescribed.
These medications help reduce inflammation without the skin-thinning effects associated with prolonged topical corticosteroid use.
Temporary stinging or burning may occur when treatment is first started.
The choice of treatment depends on the patient's age, severity, diagnosis and clinical assessment.
5. Identify and Avoid Triggers
If the lips repeatedly become inflamed after using certain products, it may be necessary to stop them temporarily and review their ingredients.
Common products worth reviewing include:
Lip balm
Lipstick
Lip gloss
Toothpaste
Mouthwash
Facial skincare products
Avoiding the relevant trigger is essential for long-term improvement.
When Is Patch Testing Necessary?
Patch testing may be recommended when:
Lip eczema keeps recurring
Symptoms do not improve despite appropriate treatment
A contact allergy is suspected
Symptoms worsen after applying certain lip products
There is persistent inflammation without a clear cause
Patch testing helps identify delayed allergic reactions to substances such as fragrances, preservatives, flavourings and cosmetic ingredients.
It is different from a skin-prick test used to investigate certain immediate allergic reactions.
Not everyone with atopic cheilitis requires patch testing, but it can be particularly useful in persistent or treatment-resistant cases.
Why Does Lip Eczema Keep Coming Back?
Lip eczema may recur because the skin barrier remains sensitive even after the visible inflammation has improved.
Common reasons include:
Continued lip licking or biting
Repeated exposure to irritating products
An unidentified contact allergy
Stopping moisturising too early
Incomplete control of inflammation
Underlying eczema-prone skin
Repeated flare-ups of lip eczema do not necessarily mean that previous treatment has failed. A weakened skin barrier, ongoing irritation and inconsistent moisturising may all contribute to recurrence.
To understand why eczema tends to return and how to achieve better long-term control, you can read my related article: Why Does Eczema Keep Coming Back? Understanding Flare-Ups and How to Manage Them.
How Long Does It Take to Recover?
Mild cases may start improving within several days after appropriate treatment and avoidance of triggers.
More persistent cases may take a few weeks, especially when inflammation has been present for a long time.
The recovery period varies depending on the severity and underlying cause.
Even after the lips have improved, regular moisturising and trigger avoidance may be necessary to prevent recurrence.
Can Atopic Cheilitis Cause Dark Lips?
Yes. Repeated inflammation may sometimes lead to post-inflammatory hyperpigmentation, particularly in individuals with darker skin tones.
The lips may appear brownish or darker after the redness and dryness have subsided.
This pigmentation often improves gradually once the inflammation is controlled, although recovery can take time.
It is important to avoid harsh scrubs, exfoliating acids or unprescribed lightening products on inflamed lips, as these may worsen irritation.
When Should You See a Dermatologist?
Consider consulting a dermatologist if:
Your lips remain dry or cracked despite regular moisturising
You experience repeated episodes of lip eczema
The lips become painful, swollen or severely inflamed
There is persistent pigmentation or an unusual change in appearance
You suspect an allergy to toothpaste, cosmetics or lip products
Treatment from the pharmacy has not helped
A persistent, localised, thickened, bleeding or non-healing lip lesion should also be examined to exclude other conditions, including sun-related lip damage.
A dermatologist can assess whether the problem is due to atopic eczema, contact irritation, allergy, infection or another lip disorder.
Frequently Asked Questions
1. Is atopic cheilitis contagious?
No. Atopic cheilitis is an inflammatory skin condition and cannot spread from one person to another.
2. Can children develop lip eczema?
Yes. Children with eczema-prone skin may develop dry, itchy or cracked lips. Frequent lip licking can also contribute to irritation.
3. Can I use Vaseline for lip eczema?
Plain petroleum jelly is often helpful for protecting the lip barrier and reducing dryness. However, inflamed lips may also require prescription treatment.
4. Is lip eczema caused by a vitamin deficiency?
Atopic cheilitis itself is not usually caused by vitamin deficiency. However, certain nutritional deficiencies, particularly iron or some B vitamins, can contribute to other forms of cheilitis.
5. Can lip eczema be cured permanently?
Atopic cheilitis can often be controlled effectively, but recurrence is possible because of the underlying eczema tendency or repeated exposure to triggers.
Identifying the cause and maintaining good lip care can significantly reduce flare-ups.
Final Thoughts
Persistent dry and cracked lips are not always simply due to a lack of moisture.
In some patients, the underlying problem is eczema-related inflammation, contact irritation or an allergic reaction to products used every day.
The key to managing atopic cheilitis is not just applying more lip balm, but identifying the cause, controlling inflammation and protecting the lip barrier.
With appropriate treatment and a consistent lip-care routine, most patients can achieve significant improvement and better long-term control.
About the Author
Dr Lim Tzyy Huei (林子辉医生) is a Consultant Dermatologist at Pantai Hospital Batu Pahat, Johor, Malaysia.
His clinical practice includes the assessment and treatment of eczema, contact dermatitis, skin allergies and other inflammatory skin conditions.
Disclaimer: This article is intended for general patient education and does not replace individual medical consultation. Diagnosis, treatment suitability and recovery may vary depending on each patient's condition. If you experience persistent or worsening lip symptoms, please consult a qualified healthcare professional for proper assessment and treatment.
