Not to morph the thread, but this might be a good time to mention deodorant because it may help prevent the OPs issue for him and other guys in the future.
I'm convinced the best unscented deodorant is Almay hypoallergenic. It's a gel that works great for me and a little spreads a long away on pits, feet, and anywhere else you apply it. In addition to the Almay, I also apply deodorant crystal, and a chunk of crystal will last for many years.
I'm trying to prevent any and all bacteria from forming. I figure the crystal may deal with a type of bacteria that the Almay may not address. I do know that the crystal works great, but it's only a deodorant, it's not an antiperspirant, so the crystal alone won't stop sweating. The Almay deals with sweating.
Everybody's body chemistry is different so this combination may not work as well for others but it works great for me.