Diagnosis. A good medical check up can be a good place to start. Treatment would ultimately come down to the specific cause, multiple potential causes.
First you need to. see a good Dermatologist for an evaluation: is your sweating due to an underlying condition (diabetes, hyperthyroidism, medications) or primary..often occurring since youth. It may be hereditary. Prescription antiperspirants (Drysol) are tried first. Iontophoresis (hands/feet immersed in water exposed to low voltage current). Botox injections, drugs that prevent all sweating temporarily, surgery.