Euthyrox refers to levothyroxine sodium tablets, and taking this medication does not usually cause swelling of the face. If the face is swollen during the medication, it is considered that the condition of hypothyroidism is not effectively controlled, and the amount of medication may be insufficient. Hypothyroidism can cause facial swelling, limb weakness, chills, decreased sweating and other symptoms, you need to take levothyroxine sodium tablets under the guidance of a doctor for replacement therapy. If facial swelling occurs, it is necessary to consider that the condition of hypothyroidism is not fully controlled, it is recommended to go to the hospital for thyroid function tests, according to the results of the test under the guidance of the doctor to adjust the dosage of drugs. It should be noted that, in addition to medication, hypothyroidism should also pay attention to avoid exertion, to ensure sufficient rest time. You can also choose to moderate consumption of kelp, nori, etc. in order to intake of iodine elements, conducive to the recovery of the condition. During the use of medication, discomfort occurs in time to go to the hospital for consultation.