had gone through your query and understand your concerns. i would come up with the possibility of PRIMARY FOCAL HYPERHIDROSIS is the cause for your sufferings. -hereditary is the underlying cause and constitutional in nature -oxybutynin never cure your problem because its not correct your constitutional tendency. treatment option; i advise you taking Homeopathic medicines gives safe and permanent cure for your complaints -there are several medicines are available for your condition, you should consult your local homeopathic physician for correct diagnosis of the case and remedy to fit your complaints I hope this is helpful for you, thank you