Increased sweating over palms and soles can be associated with anxiety. Also conditions such as thyroid dysfunction can cause this. Do get your BP and thyroid checked.
soaking your hands and feet in water used for boiling tea leaves ( containing tannins) helps thicken the skin and reduce the sweating. Do use water which has cooled off and don't put your hands in hot water.
treatments such as iontophoresis and botox offer symptomatic relief
dear Mr. X, it's one of the common problems these days
sweaty palms usually are a manifestation of some underlying anxiety or some organic causes including hormonal problems..
get evaluated by a General Medicine Consultant, with necessary investigations, after attributable physical causes are ruled out, get a psychiatrist help and medications and follow up under his care, if anxiety is the root cause....
as far as, palm sweating, it responds well to botox injection with good symptom relief for long time...you can find a Plastic Surgeon nearby who would help with that...