A young college student recently had her tongue and lip pierced. She has developed a superinfection of candidiasis from the antibacterial mouthwash. Which of the following would be the correct recommendation for her?

a. Use an antifungal mouthwash or salt water.
b. Uae a soft-bristled brush.
c. Rinse the mouth after eating food.
d. Move the piercing back and forth during washing.