If excessive sweating has no underlying medical cause, it's called primary hyperhyidrosis. It happens when excess sweating is not triggered by a rise in temperature or physical activity. Primary hyperhidrosis may be at least partly hereditary.
If the excess sweating is due to an underlying medical condition, it's called secondary hyperhidrosis
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so in your case it is primary. homoeopathic medicine have affinity to reduce gardually sweating.