★★★★★
Best thing I have found for Body Odor that even sensitive skin people can use is hydrogen peroxide... apply to underarms however you want :) can be reapplied as needed and IT WORKS... no odor :) its cheap too.
Hydrogen Peroxide
★★★★★
Pour half teaspoon of 3% hydrogen peroxide into palm, rub palms together, rub underarms. It keeps odor away all day.