In most cases, you will not need treatment for postpartum thyroiditis during either the hyperthyroid or the hypothyroid phases. Symptoms are usually mild, and the condition frequently resolves on its own, within several months to as much as a year after your baby is born.
However, if your symptoms of hyperthyroidism are uncomfortable, your doctor may prescribe a beta-blocker, such as propranolol or atenolol. (Breastfeeding is not suggested while taking beta blockers, however.) Antithyroid drugs are not used for hyperthyroid symptoms in postpartum thyroiditis.
If hypothyroidism during postpartum thyroiditis causes significant symptoms, experts recommend thyroid hormone replacement treatment. Typically, after six to twelve months on the medication, your doctor will recommend stopping it, so you can be tested again to see if your postpartum thyroiditis has resolved.