Some periods of thyroiditis require rest. The common types of thyroiditis clinically include subacute thyroiditis and autoimmune thyroiditis. Subacute thyroiditis has a relatively sudden onset, characterized by neck pain radiating to the back of the ear, fever, loss of appetite, tachycardia, muscle pain, excessive sweating, etc. If these acute symptoms are severe, rest is necessary, and treatment with non-steroidal anti-inflammatory drugs and steroids is required. If the symptoms are mild, involving only slight pain and discomfort, it might not be necessary to rest and one can continue working, but it is important to reduce the workload. In the case of autoimmune thyroiditis, most patients have a relatively stable condition and can carry on with normal work and life. However, if autoimmune thyroiditis enters a phase of hyperthyroidism with symptoms of high metabolism, it is also necessary to rest for a period. Some patients in the middle to late stages might experience symptoms of reduced thyroid function, such as dizziness, fatigue, chest tightness, and edema. If these conditions occur, it is appropriate to take some time to rest.