Lately I've noticed my right armpit gets musty significantly faster than my left armpit. Even after a day of minor movements, like a day at the office, I get home and notice the slight whiff of odor. This started happening last year, but stopped sometime in late winter of this year. I recently (about a month ago) changed my deodorant from Axe to Old Spice, and basically since then the problem returned.
When I take my morning shower the left armpit will just smell like the deodorant I put on the previous morning, whereas the right will smell like I didn't use any deodorant/musty. I don't get it