What is the cause of cracked corners your mouth lasting about 4 weeks per year and it a yeast infection or too much acid from juice?

Cracked corners of the mouth, also known as angular cheilitis, can have various causes and is not typically caused by a yeast infection or excessive acid from juice alone. Here are a few common causes of angular cheilitis:

1. Nutritional Deficiencies: A lack of certain vitamins and minerals, such as iron, zinc, riboflavin, and vitamin B12, can contribute to cracked corners of the mouth.

2. Dehydration: Not drinking enough water can lead to dry and cracked skin, including the delicate skin at the corners of the mouth.

3. Infections: Fungal infections, such as Candida (yeast), or bacterial infections can cause angular cheilitis. These infections are more common in individuals with compromised immune systems or certain medical conditions.

4. Contact Dermatitis: Allergic reactions to certain substances, such as toothpaste, cosmetics, or certain foods, can cause contact dermatitis, leading to cracked corners of the mouth.

5. Sun Exposure: Prolonged exposure to UV rays without proper sun protection can cause dry and cracked lips and the surrounding skin.

6. Smoking: Smoking can irritate the skin around the mouth, contributing to cracked corners.

7. Medications: Certain medications, such as chemotherapy drugs, retinoids, and antibiotics, can cause side effects that include dry and cracked skin.

8. Medical Conditions: Some underlying medical conditions, such as diabetes, Crohn's disease, celiac disease, or Sjögren's syndrome, can cause cracked corners of the mouth.

While angular cheilitis can sometimes be associated with a yeast infection, it is not the sole cause. It is essential to consult a healthcare professional to determine the underlying cause of your cracked corners and receive appropriate treatment. They may recommend lifestyle changes, prescribe antifungal or antibiotic medications, or suggest specific nutritional supplements to address the problem effectively.