Although subacute thyroiditis can bring on temporary hyperthyroidism, this condition usually does not require medical treatment. Any pain associated with the inflamed thyroid can generally be relieved with acetaminophen (Tylenol or Anacin) or aspirin. Do not use aspirin in children under the age of 19 because it increases the risk of Reye syndrome. If over-the-counter drugs don't help, a doctor may prescribe prednisone or dexamethasone -- powerful anti-inflammatory drugs -- for a short period