Like others mentioned, telling apart deodorants and antitranspirants is important. I used antitranspirants for a long time an had often to deal with pain in my armpits and hard stains in the armpit region of my shirts. One day it dawned on me that this might be because of the antitranspirants, so I planned to make a switch to deodorants. What followed were two to three weeks of heavy sweating and way more body smell than I was used to. BUT after this time everything got way better. I had zero ruined shirts since that, because the antitranspirant remains smelled strongly like sweat and could not be washed out. What was even way better, no more pain under my arms, my sweating is reduced and I smell better in general.