Also, the T4-T5 ETS has a high rate of recurrence for palmar hyperhidrosis. That's why the majority of surgeons usually clamp at T3 and above. If you were to undergo ETS at the T4-5 location, you face the very real possibility of developing CS, in addition to the return of your hand sweat. Bottom line, ETS isn't worth it - no matter what the technique is used.

Have you tried botox, iontophersis or any of the topical solutions?