The fastest way to reduce the swelling of the thyroid gland is to identify the cause of the disease and then adopt targeted treatment. For example, endemic goiter can be treated with medication, and it is advisable to eat more iodine-rich foods such as kelp and seaweed; diffuse simple goiter can be treated with levothyroxine sodium; goiter caused by Graves’ disease can be treated with medication, radioactive iodine and surgery. 1. Endemic goiter: environmental iodine deficiency caused by insufficient iodine in drinking water and food is the main cause of simple goiter, which may not be treated with medication, and it is advisable to eat more iodine-rich foods such as kelp and seaweed. 2. Diffuse goiter: small amount of thyroxine or levothyroxine sodium can be given to inhibit TSH secretion from pituitary gland and relieve hyperplasia and enlargement of thyroid gland. 3. Graves’ disease: antithyroid drugs, radioactive iodine and surgery should be used. 4. Surgery: clinical symptoms caused by tracheal, esophageal or recurrent laryngeal nerve compression, retrosternal goiter, huge goiter affecting life and work, nodular goiter secondary to hyperfunction, suspected malignant change of nodular goiter, etc. should be treated with surgery such as subtotal thyroidectomy. If you have a goiter, you need to go to the hospital as soon as possible, and the doctor will formulate an individualized diagnosis and treatment plan according to your specific condition, so as not to delay your condition.