1. Safety: For a 21-year-old female, using Mucopain Gel with 20% benzocaine for mouth sores is generally safe when used as directed.

2. Purpose: Mucopain Gel acts as a topical anesthetic to relieve pain and discomfort from mouth sores.

3. Usage:a. Apply a small amount directly to the affected area.b. Use up to 3-4 times a day.

4. Precautions:a. Avoid swallowing the gel.b. Do not use for prolonged periods without consulting a healthcare professional.

5. Allergy Warning: Avoid if allergic to benzocaine or similar anesthetics.

6. When to See a Doctor: If sores persist beyond 1-2 weeks, worsen, or are accompanied by symptoms like fever, seek medical advice.

Always follow package instructions or consult a healthcare provider if unsure.