I used to have to switch from anti-persitant spray to stick to roll-on every month or so. My armpits would start paining - apparently the glands in there got swollen after continuous use of a particular product, forcing me to switch up.
I now use Mitchum Clear Gel, and have been for the past year or so with no problems whatsover. No stains, no pain. And if you wave yer arms up an down a few times before donning your shirt, it's sure to be dry.
