Granulomatous thyroiditis, a self-limiting disease, treatment is based on symptomatic relief and symptomatic treatment. Granulomatous thyroiditis, also known as subacute thyroiditis, is a self-limiting localized inflammation of the thyroid gland caused by viral infection, with clinical manifestations of fever, neck pain, and in a few cases, residual hypothyroidism. The treatment of subacute thyroiditis includes: in mild cases, appropriate rest and administration of non-steroidal anti-inflammatory analgesics, such as ibuprofen, celecoxib, etc., with a course of treatment of about 2 weeks; for those with more severe systemic symptoms, fever, enlarged thyroid gland, and obvious tenderness, glucocorticosteroids can be used. The prognosis of the disease is good, and the disease can be basically relieved within a few weeks or months, and thyroid function returns to normal; individuals may develop permanent hypothyroidism and need to take levothyroxine sodium tablets for life. Subacute thyroiditis should be standardized treatment in regular hospitals to prevent improper treatment, leaving permanent damage to the body.