Just an FYI, Lavilin will do nothing for the perspiration if excessive, just the odor in some people. If you have problem sweaty feet, pardon the pun but you'll walk thru lavilin. Much of the discomfort of sweaty feet is the issues after the socks are soaked, not the odor.
Those of us with serious armpit/feet issues who've asked Dr's about it usually get the same response-Certain Dri. But follow the isntructions because you can burn the skin if you don't. This isn't Arrid extra dry or your wife's Secret. It was RX anti-perspirant.
Certain Dri used to be RX strength anti-perspirant 12% aluminum chloride. The aluminum chloride stops the sweat from ever occuring, not a treatment after the sweat has occured.
Feel free to try whatever, but I've been there, done that. If you want to stop the sweat from uccuring in the first place, try Certain Dri.