What are some ways to stop excess sweating?

Meds and surgery: While it depends upon what you mean by excess sweating and where it is occurring, there is a condition called hyperhydrosis that will cause people to sweat excessively in their armpits, palms, feet, and sometimes neck and upper chest. There are prescription antiperspirants that can be used, but there is also a surgical procedure called a sympathectomy that can be used to decrease sweating.