If your sweaty, clammy hands are a serious problem and you haven't been able to eliminate them with basic home remedies or lifestyle changes, you may want to consider talking to your doctor about medical solutions. One class of drugs that can treat excessive sweating (and thus clammy hands) is called anticholinergics. These drugs work by blocking the action of a chemical called acetylcholine in the brain, which, among other things, controls the body's sweating. Note, however, that anticholinergics can have significant side effects, including:  Higher body temperature Blurry vision Constipation Decreased saliva production Confusion Drowsiness One relatively unobtrusive procedure that can treat clammy hands is called iontophoresis. In this procedure, the hands are submerged in water for about half an hour while a mild electric current passes through it. This closes the pores in the skin of the hands, decreasing sweating. The current is not usually strong enough for it to be painful. For best results, multiple repetitions are usually necessary. While iontophoresis doesn't usually cause side effects, in rare cases, it can cause dry skin, irritation, and/or blistering. Though botox injections are most commonly known for their cosmetic uses, they can also be used to reduce sweating in certain cases. Botox treatments work by injecting a very small amount of a poison called botulinum toxin under the skin. In tiny doses, this toxin tightens the skin and interferes with a chemical that causes sweat glands to activate. Though it may take several applications, a regimen of Botox injections can prevent excessive sweating for over a year. Side effects from botox include:  Bruising/redness at the injection site Headache Flu-like symptoms Muscle twitching/drooping In very unlikely cases, dangerous symptoms of botulinum toxin poisoning (trouble breathing, trouble speaking, vision problems, weakness) For sweaty or clammy hands that won't respond to any other treatments and are a having a significant impact on a patient's...

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Write a summary of the previous text in Vietnamese:
Hỏi về thuốc ức chế phó giao cảm. Cân nhắc sử dụng phương pháp điện chuyển ion. Cân nhắc tiêm botox. Trong các trường hợp cực hiếm, bạn có thể cân nhắc phẫu thuật.