Sorry, but everybody smells. You just can't smell your own.
MM, I have used rock salt stones (som sam?) for years. It does not zap the sweat but it zaps any odour. You can buy it in almost any general shop; about Bt15 a kilo when I was last there (mostly used to clean murky standing water -- just swish it around in the tank). The pieces are very jagged raw, but you can rinse them to help smooth and then they get smoother after some use. Last for years. I gave some to a Korean friend who had smelly feet. He was overjoyed -- eradicated the smell immediately after his shower and all day in shoes. Just apply it wet to underarms or wherever you get sweat smell. This is a big chunk, likely fashioned by Western voodooers. That size would last a lifetime.