After giving birth my underarm has started smelling awful. What's the reason behind this and anything I can do to get rid of the smell?

Could it be due to postpartum sweating? Pregnancy hormones are the cause of postpartum sweating. Your body is perspiring to get rid of the extra fluids accumulated during pregnancy that was used to nourish your baby. If the smell is due to the perspiration, you can try: - Wearing loose, lightweight clothing - Use talc-free powder or deodorant to help absorb excess moisture