"ETS has proved moderately successful in treating hyperhidrosis, although the operation does carry a high risk of complications. "

Other complications of ETS include:

• sweating on the face and neck after eating food (gustatory sweating),
• inflammation of the nose (rhinitis), and
• air becoming trapped between the layers of the lung (pneumothorax) which can cause chest pain and breathing difficulties (although this usually resolves itself without the need for treatment).

Rarer complications of ETS include:

• Horner's syndrome, a condition that causes drooping of the eyelids, and
• damage to the phrenic nerve (a nerve that is used to help in breathing).

Phrenic nerve damage can lead to shortness of breath, though it may be possible to repair the nerve during surgery.

http://www.knowsley.nhs.uk/health-a-to-z/h/hyperhidrosis-excessive-sweating/

Ovarian sympathectomy as treatment for pain

Lateral pelvic structures receive their innervation mostly via nerve fibres traversing the infundibulopelvic ligaments. Thus, for lateral pelvic pain, ovarian sympathectomy could theoretically alleviate the pain. However it is rarely performed because of the high risk of vascular complication and its squeal on ovarian functions.

The Internet Journal of Gynecology and Obstetrics ISSN: 1528-8439

Chronic Pelvic Pain: A Frustrating Scenario
http://www.ispub.com/journal/the-internet-journal-of-gynecology-and-obstetrics/volume-10-number-1/chronic-pelvic-pain-a-frustrating-scenario.html