Anti-thyroglobulin and anti-thyroid peroxidase antibodies are typical clinical features of chronic lymphocytic thyroiditis, or Hashimoto’s thyroiditis. What should be done with elevated levels of these two antibodies? If the two antibodies are simply elevated and the thyroid function is normal, it is recommended that the patient should have a low iodine diet and regular recheck of thyroid function. Some domestic studies have also found that selenium yeast tablets can regulate immunity and lower antibody levels, which can reduce damage to thyroid cells. However, in the course of clinical use, it was found that the efficacy was not very precise. If the antibody level is high and a thyroid function test is performed at the same time, suggesting the presence of hypothyroidism, oral eugenol should be given for replacement therapy and the changes in thyroid function should be monitored.