hey hun is it all over sweating or in one place?
mitcham roll on is fabbo but if that doesnt work theres a roll on call driclor, if u use it though make absolutely sure that the area is comletely dry before putting on! trust me it stings like buggary! u put it on b4 bed at night then wash it off in the morning and use your normal deodorant.
it might be hormonal or it could be something called hyperhodrosis(sp?) which is basically ur sweat glands being over active. The driclor shrinks the sweat glands, it works really will
HTH