Subacute thyroiditis generally refers to subacute thyroiditis, subacute thyroiditis taking prednisone may be able to get well in a few weeks, but the specific time needs to depend on the patient’s condition. The duration of the disease varies from a few weeks to more than half a year, usually about 2 to 3 months. Subacute thyroiditis is a self-limiting disease, which can be preceded by viral pharyngitis, mumps and other illnesses, and can then present with goiter symptoms. Subacute thyroiditis can be treated with glucocorticosteroids such as prednisone during the acute stage of the disease, and prednisone treatment can significantly relieve the pain of goiter. Since subacute thyroiditis is a self-limiting disease, it can improve on its own after the disease has progressed to a certain degree, and the total duration of the disease is usually 2 to 3 months, and some patients may need half a year or even longer to relieve. Patients diagnosed with subacute thyroiditis should actively cooperate with their doctors.