Bell #31 Bladder & Yeast Infection - Each year literally millions of women and girls have at least one episode of acute bladder infection (cystitis) and kidney infections. Also some boys and men get it. Many women get a bladder infection every time they have sex. In most cases this Bell product with D-Mannose will work better than antibiotics and infections can be avoided by using it as a preventive. Antibiotics kill friendly and unfriendly micro-organisms. Every women is familiar with yeast infections that follow antibiotic use. For many women this can be the best product they ever used.