The frequency of review is different for different stages of hyperthyroidism treatment. After 8 months of taking medication for hyperthyroidism, if the thyroid hormone control is stable, you can have a recheck in about 1~2 months, if it is unstable you should have a recheck in about 1~2 weeks, please consult your doctor for details. Side effects of antithyroid drugs are more commonly seen as rash, itchy skin, and leukopenia. Severe granulocyte deficiency and aplastic anemia are less common, and loss of taste, gastrointestinal reactions, arthralgia, dizziness, headache, and vasculitis may also occur. Therefore, it is necessary to regularly review indicators such as blood routine, liver function and thyroid hormone level to assess the condition and adjust the medication in time. After starting the medication, it should be rechecked every 2 weeks or so, and generally every 1~2 months during the stabilization period, please consult your doctor for details. Patients with hyperthyroidism need to take medication under the guidance of a physician and insist on regular checkups.