Should I Change My Toothbrush After a Cold?
For a typical common cold, replacing your toothbrush is usually optional rather than medically necessary. A clean, dry brush that is not shared or stored against others is unlikely to reinfect you with the same virus. However, replacing the brush makes more sense if it is worn, old, stored near other brushes, or if your immune system is weakened. The best choice depends on the brush’s condition, your household setup, and your personal risk factors.