Summer is approaching, while enjoying the bright sunshine, for most people, sweating is a common thing, but for some people, the endless stream of sweat seems to bring them endless trouble, become a life “regret” thing. Because the palms of the hands sweat too much, hands too wet and afraid to shake hands with others; because the armpits sweat too much clothes are often wet with sweat, and even armpit odor and afraid to approach with others; feet sweat too much often make socks, insoles wet, causing foot odor, ringworm and to friends afraid to take off shoes into the door …… this is what we call hyperhidrosis, is due to This is a disease caused by excessive secretion of sweat glands due to excessive sympathetic excitement. It is not a difficult disease, but the continuous excessive sweating and the embarrassment it causes makes the patient in helplessness, anxiety or panic every day, which brings great inconvenience to the patient’s work, social and life, and seriously affects the patient’s self-confidence. This anxiety and nervousness, in turn, can cause more sweating, forming a vicious circle. The cause of hyperhidrosis can be divided into primary and secondary. Secondary hyperhidrosis can be caused by hyperthyroidism, endocrine disorders, psychiatric disorders, trauma to the brain and spinal cord, tumors, endocrine imbalances during menopause, medications, etc. From the point of view of the onset of the disease, it can be divided into generalized (generalized) and localized (limited) hyperhidrosis. Patients with generalized hyperhidrosis often have moist skin surfaces and paroxysmal sweating. The localized hyperhidrosis is mostly seen in the palms of the hands, armpits and soles of the feet, palm hyperhidrosis is often accompanied by peripheral blood circulation dysfunction, such as wet and cold, bruised or pale skin of the hands and feet, easy to frostbite; axillary hyperhidrosis, due to the thin and tender skin of the part, often moist friction, easy to occur erosion red spots, accompanied by folliculitis, boils, etc., often accompanied by axillary odor; foot hyperhidrosis due to poor evaporation of sweat, resulting in the sole of the epidermis impregnated white, often accompanied by foot odor It is often accompanied by foot odor. Occasionally, it occurs on the tip of the nose, forehead, pubic area, etc. The onset of hyperhidrosis begins at a young age and worsens in adolescence and remains with the patient for life. The sympathetic nervous system of hyperhidrosis patients is more responsive than others, and the sympathetic nervous system controls the secretion of sweat glands and vasoconstriction, so when stressed, even in a hot environment, the sweating is much more than the average person. There are many traditional treatments for hyperhidrosis, including astringents, antiperspirants, anticholinergic drugs, sedatives, hypnotherapy, psychotherapy, iontophoresis and acupuncture, but they are often ineffective and have many side effects and troublesome operations. The other is surgical treatment – local sympathectomy or sweat gland stripping, which can eradicate local hyperhidrosis, but the method is highly invasive and prone to complications such as compensatory sweating and reflex sweating. For hand hyperhidrosis and axillary hyperhidrosis, localized botulinum toxin injections are an option. Botox paralyzes the sympathetic nerves that innervate the sweat glands, blocking the sympathetic innervation of the sweat glands and achieving the effect of controlling sweat secretion. This is one of the newest treatments for the disease in recent years. It is the easiest local injection to achieve maximum benefit with few side effects, and is usually treated once a year at the beginning of summer. Botulinum toxin can be injected into the body by a medical professional in a precise position and in a quantitative manner, so that the most satisfactory results can be achieved immediately with the smallest dose.