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I have had this smelly armpit problem since I was 13 years old and am now 18 years old. I have tried nearly everything from natural deodorants to strong chemical based anti perspirants. I am reaching the end of my tether but I won't give up. You say that the smell under our armpits is due to the bacteria that live there right? What do you think would happen if I started taking probiotics? Do you think this would somehow help change the bacteria in/on my body seeing as everything is linked to the gut?