Is Canesten the right solution in my situation or should I see a doctor? And is it safe to use while breastfeeding?

In this situation, it is recommended to consult a doctor rather than relying solely on over-the-counter solutions like Canesten. An unusual smell accompanied by excessive discharge may indicate an underlying issue that requires medical attention to ensure proper diagnosis and treatment. It's important to seek professional medical advice in order to address any potential health concerns effectively.