Subacute thyroiditis fever can be physical cooling, the use of non-steroidal anti-inflammatory drugs, glucocorticoids treatment, but also bed rest, drink more water, eat a light diet, pay attention to diet rich in nutrients, avoid the intake of iodine content is too high food. Subacute thyroiditis is an inflammatory lesion of the thyroid gland caused by viral infection, fever is a common manifestation, can be used to physical cooling, drink plenty of water, pay attention to rest, avoid intake of iodine-rich foods, such as seaweed, seafood, seaweed and so on. If the symptoms are mild, they can be treated with non-steroidal anti-inflammatory drugs, such as aspirin and acetaminophen. For patients with severe symptoms or poor treatment with non-steroidal anti-inflammatory drugs, glucocorticoid treatment can be considered, such as prednisone, dexamethasone, etc. In addition, patients with hypothyroidism may be treated with levothyroxine hormone replacement therapy. Patients with subacute thyroiditis who develop fever should go to the hospital and be treated with medication under the guidance of a doctor.