Huasu tablets have good efficacy in the treatment of laryngitis, mouth ulcers and other diseases, the treatment mode is iodine directly halogenate the bacteria protein in the throat, so as to achieve the purpose of sterilization. Therefore, long-term use of Huazhou tablets, the harm is great, taking too much iodine toxicity, which brings a series of symptoms, such as: mental depression, nervousness, impotence and so on, especially for some hyperthyroidism patients, but also need to be taken under the guidance of a doctor, can not be blindly use the drug, so as not to jeopardize the health of the body.