Hyperhidrosis is a medical condition characterized by excessive sweating that occurs even when the body does not need to cool down. This condition can affect various parts of the body, including the hands, feet, underarms, and face. It can be localized to specific areas or generalized across the body. People with hyperhidrosis may experience social anxiety and discomfort due to their condition. Treatment options include prescription antiperspirants, medications, and procedures like botulinum toxin injections or iontophoresis, which can help reduce sweating and improve quality of life.