Is there a surgery to stop the side of your neck from sweating? My daughter is 18-years-old and perfectly happy and healthy. However, she was born with a cystic hygroma on her neck which was removed immediately after birth. She has been complaining for ye

During . During removal of hygroma some of the parasympathetic fibers innervated the skin. The treatment would be Botox injections into the arrea typically after few injections patients will feel much better. If that does not help a more complex operation can be attempted with placement of the accellular graft to provide a spacer beten parasympathetic endings and skin.
Talk to your doctor. There are procedures, ranging from injections to surgery, to interrupt the sympathetic nervous system at that level. Talk to your md about options.