Lip Problems

• Clinical Definition: Inflammation, exfoliation, fissuring, crusting, or ulceration of the labial tissue and vermilion border.

• Warning Signs of Serious Lip Disease: Ulcerations lasting longer than 14 days, rapid swelling with no apparent cause, or spontaneous bleeding.

• Causative Agents: Solar radiation (actinic cheilitis), saliva pooling and maceration (angular cheilitis), contact allergens, and underlying nutritional deficiencies.

• Treatment Options: Topical treatment to repair lipid barriers, antifungal/antimicrobial treatments, corticosteroid creams or ointments, and laser destruction of larger lesions.

• Symptoms include dry, peeling, flaking skin around the edge of your lips (vermilion border).

• You may experience deep, vertical cracks or painful splits across the corners of your mouth (commissures).

• Spicy food can cause burning sensations; redness (erythema); and soreness when chewing.

• Small pustules; small blistering; crusts or liquid filled blisters may appear.

• Your lip area may become hardened, or develop leather-like patches (plaques).

If you have experienced one of these symptoms for an extended period of time, see a dentist or oral surgery specialist right away.

• Any lip sores or ulcers that are over 2 weeks old, with no indication of healing.

• Red or white precancerous patches (erythroplakia / leukoplakia) on the lip area.

• Swollen face; swelling is rapid; swelling accompanied by high temperature and difficult breathing.

• Tingling (paresthesia) in the lower lip/chin areas.

• Environmental Contact: The UV rays that reflect off Kerala's sun-drenched skies and reach the lips to create a significant amount of damage that can affect the cells at the edge of the vermilion coloration of the lips.

• Microbial Overpopulation: Candida albicans thrives in warm/humid climates and when it grows on the lips, at the corner of the mouth, it creates angular cheilitis.

• Contact Allergens/Allergic Reactions: Reaction to certain compounds found in some toothpastes (such as sodium lauryl sulfate / SLS) and lip balms, as well as irritants present in traditional oral chew products.

• Continued Mechanical Stress: Continued lip licking/biting or continued friction against sharp teeth or micro-cracks in the enamel of your teeth.

• Low Levels of Essential Nutrients: Low levels of essential nutrients like B-complex vitamins (specifically vitamin B2, B6, and B12), iron, or zinc that compromise mucosa healing.

• Dietary/Cultural Practices: Diet rich in highly acidic/spicy/hot foods (like coconut curry) are irritating to the compromised mucous membranes of the lips.

• Immunocompromised Conditions: Diabetic conditions; immune system suppression due to either diabetes or medications used to suppress an overactive immune response; or aging related changes in salivation.

• Prosthetic Devices That Do Not Fit Correctly: When ill-fitting prosthetic devices (such as poorly fitting dentures) allow the formation of deep creases at the corners of the mouth, they provide a reservoir where pooled saliva can encourage microbial proliferation (particularly Candida).

• Visual Inspection: In a well-lit area, look closely in a mirror to check your lips for color changes, rough areas, or asymmetric swelling.

• Gentle Palpation: Wash your hands thoroughly. Using clean fingers, gently feel the tissue to check for any firm spots, internal lumps, or unusual tightness (avoid pressing directly on open, painful, or active fluid-filled sores).

• Mucosal Check: Gently roll the lips outward to inspect the inner labial mucosa and the corners of the mouth (commissures).

• Do not attempt to remove peeling skin or pop any fluid-filled blisters.

• Visual Clinical Examination: Perform thorough clinical inspection—supplemented by dermoscopy when assessing localized structural changes or pigmented lesions—to evaluate microstructural epithelial damage and assess lesion borders.

• Tissue Vitality & Swab Testing: Obtain microbial cultures to identify whether Candida (fungal), Staphylococcus (bacterial), or other pathogens are involved.

• Histopathological Biopsy: Remove a small tissue sample under local anesthesia to confirm or exclude dysplasia or oral squamous cell carcinoma when lesions fail to heal.

• Restorative and Protective Barrier Treatments: Apply topical ceramides and medicated sunscreen with SPF 30+ designed for oral tissue.

• Pharmacological Therapy: Administer targeted topical agents, such as antifungal medications (e.g., clotrimazole) or antibiotics for Staphylococcus aureus infections at the corners of the mouth.

• Photobiomodulation / Low-Level Laser Therapy (LLLT): Utilize non-invasive adjunct laser technology to help reduce inflammation and support cellular recovery in persistent, painful lip fissures.

• Surgical and Ablative Treatments: Perform laser ablation or cryotherapy to remove lesions associated with actinic cheilitis.

The cost of treatment varies based on the complexity of your condition. 

• An initial consultation with a specialist ranges from ₹400 to ₹1,000. Topical pharmacotherapy and medication kits start at ₹300. 

• If a biopsy and histopathological examination are necessary, the cost ranges from ₹2,500 to ₹6,000. 

• A laser ablation or cosmetic procedures can cost anywhere from ₹5,000 to ₹15,000. 

Basic diagnostic tests are typically covered under state health insurance schemes; however, advanced laser cosmetic procedures must be paid out-of-pocket.

• General Dental Surgeon: Performs initial assessments of all patients, manages minor trauma, conducts basic lesion management, and handles minor surgical interventions.

• Oral Medicine and Radiology Specialist (OMR): Provides diagnosis and non-surgical management of chronic mucosal disorders, systemically linked lip conditions, precancerous lesions, and performs diagnostic biopsies.

• Dermatologist: Treats external vermilion border skin diseases and severe allergic contact dermatitis.

• Maxillofacial Surgeon (MFS / OMFS): Performs complex surgical tissue removals, mucocele excision procedures, and surgical treatments for malignant conditions.

• Immediate Attention (Within 2–4 Hours): Acute angioedema with potential airway involvement, severe acute facial trauma, or rapid, uncontrolled hemorrhage.

• Same-Day or Next-Day Care: Painful, weeping lesions associated with systemic symptoms (e.g., fever).

• Schedule Within 1 Week: Chronic dryness, flakiness, or suspected angular cheilitis.

• Schedule Within 2 Weeks: Follow-up on slowly growing, asymptomatic areas or texture changes.

1. What causes the lips to become cracked at the corner? And why don't they heal after I use lip balm?

Angular cheilitis is an inflammatory condition—often secondary to fungal (Candida) or bacterial infection—that develops in the moist skin folds at the corners of your mouth. Applying unmedicated lip balms over infected, macerated skin can trap moisture and saliva, creating an ideal environment for microbial growth; to resolve it, see your doctor or dentist for a proper diagnosis and targeted treatment, which may include antifungal, antibacterial, or protective barrier therapies.

2. Does chronic sun exposure in tropical areas such as Kerala affect your lip permanently?

Yes. Chronic sun exposure, especially if in high intensity UV light, causes actinic cheilitis which is a potentially malignant condition. The condition causes a loss of definition of the edge between the lip and surrounding tissue. This means you should take regular care of your lips with SPF, and have your lips checked regularly by a health-care provider.

3. Will all lip sores turn into cancer?

Most lip sores are benign ulcers, cold sores, or minor trauma; however, any lip sore or ulcer lasting longer than 2 weeks without signs of healing requires immediate evaluation by a dental or medical specialist to determine whether a histopathological biopsy is necessary to exclude malignancy.

• Oral Candidiasis (Thrush): Oral candidiasis is an infectious condition created by fungi that spread from inside of the mouth and/or tongue to the area around the mouth (labial commissure).

• Nutritional Anemia: Nutritional deficiencies in vitamin B-12 and/or iron create deficiencies in the rate of cellular regeneration in mucosal surfaces.

• Gastroesophageal Reflux Disease (GERD): Gastrointestinal reflux disease creates an acidic environment in the mouth which may irritate sensitive mucosal surfaces.

• Intraoral Scaling & Debriding: Remove intraoral plaque and calculus deposits to reduce overall oral bacterial load and secondary infection risks.

• Adjustment of Denture Vertical Dimension: Restore the occlusal vertical dimension (OVD) of older removable dentures to reduce deep skin folds at the corners of the mouth and prevent saliva pooling.

• Night Guards Made-to-Order: Reduce nocturnal lip biting or damage from bruxism (grinding your teeth) that occurs due to friction.

Many patients have lip-related issues that they believe will improve once their lips become less dry; however, the mucosal surface of the lips is an excellent indicator of internal health and external environment. In clinical settings located throughout tropical environments, it is evident that prompt treatment prevents minor conditions such as actinic or angular cheilitis to develop into significant chronic alterations in labial tissue. Therefore, patients should refrain from using excessive treatments or applying topical corticosteroids as OTC products to treat lip disorders until after they have been diagnosed. The best method to achieve a healthy and intact labial barrier over time involves routine assessment by a clinician in addition to adequate sun protection.