Home Remedies for Angular Cheilitis: Causes and Treatment Methods

Angular cheilitis, colloquially referred to as "perleche" or "angular stomatitis," represents an inflammatory dermatological condition primarily affecting the labial commissures. This disorder is clinically characterized by the presence of linear fissures in the epidermal layer, which—if left untreated—may progress to deep erosive ulcerations. Affected individuals typically present with erythematous, tender lesions that exhibit heightened sensitivity to mechanical stress (e.g., during mastication or yawning) and a propensity for spontaneous hemorrhage. The condition may manifest unilaterally or bilaterally. The underlying pathophysiology frequently involves dysbiosis of the oral microbiome, wherein commensal fungi—most notably *Candida albicans*—exploit compromised mucosal integrity to undergo unchecked proliferation. Isolated episodes seldom necessitate specialist referral; instead, resolution often follows targeted lifestyle adjustments (e.g., supplementation with B-complex vitamins, avoidance of irritant foods). However, recurrent or refractory cases warrant dermatological or dental evaluation, encompassing a differential diagnostic workup (detailed history-taking, physical examination with assessment for lingual leukoplakia, and potential mycological cultures) and the implementation of evidence-based therapeutic regimens [1].

The development of painful fissures at the corners of the mouth, clinically referred to as angular cheilitis or perlèche, is a multifactorial condition influenced by a broad spectrum of underlying causes. Primary contributing factors include: a transient suppression of immune function, particularly during the autumn and winter months when the body’s defensive mechanisms are more susceptible to infectious agents; congenital or acquired immunodeficiency disorders, such as those observed in human immunodeficiency virus (HIV) infection or acquired immunodeficiency syndrome (AIDS); and mycotic infections (predominantly caused by *Candida albicans*) alongside bacterial infections (frequently involving *Streptococcus* species or *Staphylococcus* bacteria). Nutritional deficiencies, particularly of riboflavin (vitamin B2), play a pivotal role in the pathogenesis of this condition. The etiology of such deficiencies may stem from dietary inadequacies—such as insufficient intake of whole grains, dairy products, or other riboflavin-rich foods—chronic alcohol abuse, poorly planned vegan or vegetarian diets lacking proper supplementation, or eating disorders like anorexia nervosa and bulimia nervosa. Additionally, impaired absorption of riboflavin can arise from gastrointestinal disorders, including celiac disease, cystic fibrosis, or small intestine malignancies. Iron deficiency represents another significant risk factor. Similar to vitamin B2 deficiencies, its origins may be dietary (inadequate iron consumption) or linked to malabsorption syndromes within the digestive tract. Metabolic disorders, particularly diabetes mellitus, further exacerbate the likelihood of angular cheilitis due to fluctuations in blood glucose levels, which compromise local immune defenses of the skin and mucous membranes, facilitate fungal overgrowth, and prolong wound healing. Other predisposing factors include: allergic reactions (e.g., to ingredients in toothpastes, cosmetics, or certain foods), mechanical trauma to the oral tissues (such as that caused by ill-fitting dental prostheses), and prolonged antibiotic therapy, which disrupts the oral microbiome’s equilibrium. In pediatric populations, bacterial infections are the most common underlying cause of angular cheilitis, whereas in adults, fungal infections—primarily those induced by *Candida albicans*—predominate [2].

Conventional management of angular cheilitis (colloquially referred to as *perleche*) primarily revolves around consistent hydration of the affected labial commissures coupled with the elimination of mechanical irritants that may exacerbate inflammation. In instances where the condition manifests as chronic or recurrent, a thorough dietary assessment becomes imperative to identify and address potential deficiencies in critical micronutrients—most notably riboflavin (vitamin B₂) and iron. The most bioavailable sources of riboflavin include animal-derived products such as lean meats, whole-fat dairy (e.g., aged cheeses and plain yogurt), whereas heme iron—characterized by superior absorption—is predominantly found in organ meats (particularly liver) and red beef cuts. In clinically justified scenarios, and following consultation with a healthcare provider or registered dietitian, targeted supplementation with highly bioavailable forms of these nutrients may be considered. Adjunctive therapy frequently incorporates topical antifungal agents (e.g., 1% clotrimazole cream), given the common involvement of *Candida albicans* yeast in the disease’s etiopathology. For individuals diagnosed with type 1 or type 2 diabetes mellitus, maintaining optimal glycemic control is paramount, as persistent hyperglycemia not only predisposes to recurrent episodes but also undermines treatment efficacy [1, 2].

For the symptomatic relief of angular cheilitis—painful and unsightly fissures at the corners of the mouth—home-based interventions are widely utilized to alleviate inflammation without resorting to pharmacological treatments. These methods are cost-effective and rely on naturally derived compounds with documented therapeutic efficacy. Among the most frequently recommended are: **raw honey**, which, owing to its antibacterial and anti-inflammatory properties, accelerates wound repair—best applied in combination with aloe vera gel as a 15-minute compress; **aloe vera**, whose juice exhibits regenerative and antimicrobial effects—regular application to the affected area multiple times daily is advised; **extra virgin olive oil**, rich in fat-soluble vitamins (A, D, E, K), which mitigate irritation and support mucosal epithelium restoration; **grape seed oil**, a potent source of riboflavin (vitamin B2), deficiency of which predisposes individuals to angular cheilitis; and **garlic**, with its robust antifungal and antibacterial activity, which may be used topically as a poultice or incorporated into the daily diet. While often dismissed as a minor cosmetic concern, angular cheilitis can cause significant discomfort, particularly during periods of reduced immune function. Preventive measures should include a balanced diet with adequate intake of B vitamins and iron to fortify the mucosal immune barrier [3].