Subthyroiditis can be cured because it is a self-limiting disease and its prognosis is generally good. Subtyrannitis is mainly due to the destruction of thyroid follicles caused by viral infection, which leads to a series of symptoms. Mild patients may have neck pain, which only requires symptomatic treatment with non-steroidal anti-inflammatory drugs such as aspirin, celecoxib or ibuprofen. Moderate to severe patients can apply hormone therapy and gradually reduce the dosage, maintaining the treatment for 4-6 weeks, and some patients may have relapses, but the hormone therapy is still effective after the relapse. If it is for thyrotoxic manifestations, you can apply propranolol and so on to reduce the heart rate treatment, if there is transient hypothyroidism, you can apply eugenol and so on to supplement the treatment.