What are the reasons for the recurrent episodes of angular cheilitis?

The main reasons for the recurrent episodes of angular cheilitis include the following: 1. Incomplete treatment: Patients may not adhere to medication regimens, arbitrarily change dosages, or experience inadequate local treatment effects, leading to failure in completely eliminating the underlying causes. 2. Unhealthy behavioral habits: Frequent lip licking, touching, or rubbing of the corners of the mouth can easily irritate and damage the mucous membranes, providing opportunities for bacterial or fungal invasion. 3. Environmental factors: During autumn and winter seasons, dry air or insufficient indoor humidity can cause dryness of the mucous membranes at the corners of the mouth, increasing the risk of recurrence. 4. Nutritional deficiencies: Lack of nutrients such as B vitamins may affect the normal growth and metabolism of the mucous membranes at the corners of the mouth, leading to recurrent episodes of angular cheilitis. 5. Infectious factors: Recurrent infections by pathogens such as bacteria and fungi, especially when oral hygiene is poor, may lead to recurring angular cheilitis. If you have any concerns, please consult a relevant healthcare professional.