Yes, body mist can be used on the underarms. However, it's important to note that body mists are typically designed for fragrance purposes and not specifically formulated for the delicate skin of the underarms. If you're looking for a product to address odor or sweat in the underarm area, it's better to use a deodorant or antiperspirant specifically formulated for that purpose. These products are designed to provide odor control and reduce sweat production in the underarms, while also being gentle on the skin.