Too much sweating in the summer may be caused by physiological factors and generally does not require special treatment. It may also be caused by organic diseases, such as diabetic hypoglycemia, hyperhidrosis of the hands and other factors. Can be given hypoglycemic drugs, topical antiperspirant or surgical treatment. 1. Physiological factors: the summer weather is hot, through sweating can regulate body temperature, resulting in sweaty hands. High mental tension, excessive anxiety, and emotional excitement may lead to excessive hand sweating. By detaching from the environment and regulating emotions can help improve. 2. Diabetic hypoglycemia: Patients with diabetes have a hypoglycemic reaction to medication, leading to increased hand sweating. Sugar water, sugar cubes, and appropriate food can be given to help relieve symptoms. Diabetes mellitus impairs the sweat function, resulting in sweating even when the day is not hot, can be given to regulate the function of the vegetative nervous system, can reduce sweating. 3. Hand Hyperhidrosis: Hand Hyperhidrosis refers to sweaty hands, especially mood swings, increased stress, the symptoms are more obvious. Formaldehyde solution, alum solution, aluminum chloride hexahydrate can be used externally to reduce sweat outflow. Local injection of botulinum toxin type A blocks the release of acetylcholine from cholinergic neurons. Thoracic sympathectomy through endoscopy, if necessary, can reduce sweat outflow. If the symptoms of sweaty hands are more serious and have already affected daily life and work, or if there is a need for treatment, it is recommended to visit the dermatology department of a hospital and follow the doctor’s instructions for treatment.