Xia Gu Cao is a herbal medicine with relatively cool properties, which has been recorded in medical books since ancient times to treat thyroid nodules. It can dissipate nodules, relieve pain, antibacterial and anti-inflammatory effects, and has a better therapeutic effect on benign thyroid nodules. If it is an inflammatory thyroid nodule, it can even be completely cured by taking Xia Gu Cao orally. If it is malignant thyroid nodules, usually take surgery as the main program, pure oral Xia Gu Cao treatment, the therapeutic effect may not be very obvious, only with the use of Xia Gu Cao treatment. It should be noted that, if the spleen and stomach cold people or people allergic to Xia Gu Cao, is not able to oral Xia Gu Cao treatment of thyroid nodules.