Hello Madam, Welcome to Health Care Magic. I read carefully your query and I understand your concern. We usually think of bacteria as something that causes diseases, but human body is full of bacteria, both good and bad. Probiotics are often called good or helpful bacteria because they help keep your gut healthy. Yeast infections often follow a dose of antibiotics, since in addition killing the bacteria that s making you sick, the medicine also kills bacteria that are normally found in your body, and leading to the overgrowth of the yeast. Regarding your implantation, the usage of probiotics doesn t cause any problem, on the contrary. You can use safely the product you bought. Hope I helped with my answer. Feel free to ask again. Take Care, Dr. Ina Zaimi