I suffered from severe underarm odor since junior high school. Even though I would bathe several times daily, as soon as I jumped out of the shower, I would still have a musty, onion-like odor. And the more I would worry about it, the more I would smell. Surprisingly, I didn't seem to have as much of a problem with odor when I was working out in the gym. I finally found something to help the odor. I asked my doctor to prescribe sulfacetamide cream, which I applied under my arms on freshly cleaned skin. I then applied Secret Clinical Antiperspirant and then Shower to Shower powder. This helped me for a couple of years, at least. But I began to have an allergic reaction to it. I began getting sore throats and upper respiratory infections because of it, so I had to discontinue use.
So I began researching this site again and found an even better answer for me! I now wash gently under my armpits with borax. (Using soap leaves a film on which the bacteria will eat and multiply, causing odor!! ) I then apply extra virgin organic coconut oil and then sprinkle baking soda on top. Amazing!! NO ODOR! At night after my shower, I just use coconut oil. (Using baking soda twice daily, along with the borax, can be very irritating. ) Keep in mind that you will have to get used to sweating - a good thing. However, you may continue using antiperspirant on top of the coconut oil and baking soda. Hope this helps! Blessings!