Thyroid disease can be treated, if the examination can be clearly diagnosed, can take the appropriate drug treatment. There are two common thyroid diseases, as follows: 1, primary hyperthyroidism, need to take oral anti-thyroid drugs, such as methimazole, propylthiouracil and other drugs to treat this disease, this disease has a relatively long treatment time, need to be 1.5 years, if the treatment time is too short, the disease is very easy to recur; 2, the more common disease is primary hypothyroidism, treatment is relatively simple, patients take oral eugenol replacement therapy can be, to monitor the changes in thyroid function, and to monitor the changes in thyroid function. The treatment is relatively simple, patients can take oral eugenol replacement therapy, to monitor the changes in thyroid function, according to the results of the adjustment of the dosage of eugenol. The problem that needs attention is that primary hypothyroidism patients, taking eugenol replacement therapy is lifelong, can not stop the drug, if the patient arbitrarily stop the drug, the level of thyroid hormone will be significantly reduced again.